25 Best and Coolest Hole Saw Drill Bit Sets

 

DDN 9 Pcs SET Diamond Hole Saw Drill Bit Set 10mm - 50mm Granite Glass Tile - Tools

DDN 9 Pcs SET Diamond Hole Saw Drill Bit Set 10mm – 50mm Granite Glass Tile – Tools

DDN 9 Pcs SET Diamond Hole Saw Drill Bit Set 10mm – 50mm Granite Glass Tile – Tools - Diamond style drill bits are the preferred drill bit for use when drilling ceramic, glass, granite, marble, and many other hard materials. Using diamond drill bits requires liquid cooling of the working material when drilling. Professional grade diamond substrate bonding is employed in the design and manufacture of our diamond drill bits to provide extended life and reduced chipping when working with delicate materials. Important always use water to cool the material you are drilling. Drill bit sizes, 10,14,16,18,20,25,32,45,50mm nickle plated, diamond coating great for drilling holes in marble, slate, glass, tile etc. Drill bits will work with both 3/8-inch and 1/2-inch drills (drill not included). Diamond drill bits are manufactured with a one piece body design to reduce cracking and fatigue caused by stress, and pressure.

 

LOT 10 Pcs SET Diamond Hole Saw Drill Bit Set 14 - 2 Inch Granite Glass Tile - Tools 10 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain by DRILAX

LOT 10 Pcs SET Diamond Hole Saw Drill Bit Set 1/4 – 2 Inch Granite Glass Tile – Tools 10 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain by DRILAX

LOT 10 Pcs SET Diamond Hole Saw Drill Bit Set 1/4 – 2 Inch Granite Glass Tile – Tools 10 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain by DRILAX - For tile / glass/ marble / granite / ceramic / porcelain / stone holesaw. Electroplated diamond drill bits. Lot 10 pcs set diamond hole saw drill bit set 1/4, 2 inch granite glass tile, tools 10 piece diamond dust hole saw drill bit for ceramic tile marble rock porcelain. Excellent results in granite, ceramic, porcelain, glass, marble, slate, and tile. Foam insert for all 5 diamond drill bits sized 3/4″, 1″, 1-3/16″, 1-3/8″, 1-5/8″.

 

10pcs 10mm-50mm diamond hole saw drill bit set tile ceramic

10pcs 10mm-50mm diamond hole saw drill bit set tile ceramic

10pcs 10mm-50mm diamond hole saw drill bit set tile ceramic - 02″, 32mm/1. 39″, 14mm/0. Use note 1. 97″ quantity 10pcs features can be used with a standard electric drill. This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other. 50″, 45mm/1. 62″, 18mm/0. Start your hole diagonally, make a round trace and then hold drill straight. Package included 1set x diamond hole saw (10pcs). Materials and only needs water for lubrication. 7″, 20mm/0. 2. 55″, 16mm/0. 79″, 26mm/1. 77″, 50mm/1. Always use lubrication (water), otherwise the diamond core drill will burn. Description 10pcs 10mm-50mm diamond hole saw drill bit set tile ceramic glass porcelain marble hole saw specifications material steel size 10mm/0. Always use lubrication (water), otherwise the diamond core drill will burn. 26″, 38mm/1.

 

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set - Diamond Hole SAW Drill BIT FOR Ceramic Porcelain Tiles Glass Marble Granite Hole Sizes from 3mm to 12mm

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set – Diamond Hole SAW Drill BIT FOR Ceramic, Porcelain Tiles, Glass, Marble, Granite, Hole Sizes from 3mm to 12mm

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set – Diamond Hole SAW Drill BIT FOR Ceramic, Porcelain Tiles, Glass, Marble, Granite, Hole Sizes from 3mm to 12mm - Size3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm. Start your hole diagonally, make a round trace and then hold drill straight. This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, cer. Always use lubrication (water ), otherwise the diamond core drill will burn, start your hole diagon. Easy to use, high quality,good performance, long life, excellent for making clean and accurate hole.

 

MissAJLOT 15 Pcs SET Diamond Hole Saw Drill Bit Set 6mm - 50mm Granite Glass Tile - Tools 15 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain

Miss.AJLOT 15 Pcs SET Diamond Hole Saw Drill Bit Set 6mm – 50mm Granite Glass Tile – Tools 15 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain

Miss.AJLOT 15 Pcs SET Diamond Hole Saw Drill Bit Set 6mm – 50mm Granite Glass Tile – Tools 15 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain - Excellent for making clean and accurate hole on glass , tile and marble. Always use lubrication (water), otherwise the diamond core drill will burn. Can be used with a standard electric drill(excluding in this item). 4,6,8,10,12,14,16,18,20,22,25,28,30,40,50mm. Start your hole diagonally, make a round trace and then hold drill straight.

 

eBoot Diamond Drill Bit Coated Grit Hole Saw Set for Tile Granite Glass 3 8 to 1 Inch 5 Pieces

eBoot Diamond Drill Bit Coated Grit Hole Saw Set for Tile Granite Glass, 3/ 8 to 1 Inch, 5 Pieces

eBoot Diamond Drill Bit Coated Grit Hole Saw Set for Tile Granite Glass, 3/ 8 to 1 Inch, 5 Pieces - Diamond drill sizes diamond drill set includes 5 diameter of 3/ 8, 1/ 2, 5/ 8, 3/ 4, 1 inch, 5 cm and 55 cm in length, good quality diamond drilling tool set. Clean and accurate hole can drill a complete clean and accurate hole from hard surface, no broken edges and no tremor phenomenon, long service life, durable. Multiple uses hole saw set can be applied on porcelain, glass, tile, ceramics, stone, granite and other hard surfaces, for most common standard electric drillers. Steel and nickel coated material these drill coated hole saws are made from steel and nickel coated material, the drill head is covered by diamond particles, sturdy. Warm notice please add lubricants or water frequently to avoid sparks while using these coated grit hole saw set, can also enhance the working life by doing this.

 

Whitelotous 10Pcsset 3-14MM Diamond Coated Core Hole Saw Drill Bit Set Tools for Tiles Marble Glass Ceramic

Whitelotous 10Pcs/set 3-14MM Diamond Coated Core Hole Saw Drill Bit Set Tools for Tiles Marble Glass Ceramic

Whitelotous 10Pcs/set 3-14MM Diamond Coated Core Hole Saw Drill Bit Set Tools for Tiles Marble Glass Ceramic - Suitable for drilling hole on glass, marble, tile or granite. Can be used with a standard electric drill(not included). This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication. Start your hole diagonally, make a round trace and then hold drill straight. Total 10 different sizes 3mm / 4mm / 5mm / 6mm / 14mm / 8mm / 10mm / 16mm / 12mm / 18mm.

 

LOT 8 Pcs SET Diamond Hole Saw Drill Bit Set 38 - 1 34 Inch Granite Glass Tile - Tools 8 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain

LOT 8 Pcs SET Diamond Hole Saw Drill Bit Set 3/8″ – 1 3/4″ Inch Granite Glass Tile – Tools 8 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain

LOT 8 Pcs SET Diamond Hole Saw Drill Bit Set 3/8″ – 1 3/4″ Inch Granite Glass Tile – Tools 8 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain - Diamond drill bits, hole saws. For porcelain, glass, marble, ceramic, rock and granite. 8 popular sizes 3/8″ to 1 3/4″, factory direct products bulk packages. 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 3/8″, 1 1/2″, 1 3/4″.

 

CNBTR 10mm Diamond Silver Hole Saw Drill Bit Set for Tile Ceramic Porcelain Glass Rock Pack of 10

CNBTR 10mm Diamond Silver Hole Saw Drill Bit Set for Tile Ceramic Porcelain Glass Rock Pack of 10

CNBTR 10mm Diamond Silver Hole Saw Drill Bit Set for Tile Ceramic Porcelain Glass Rock Pack of 10 - This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication. Small incision resistance, chip easily, improved drilling speed, ease of decoration after opening. Material alloy. Surface by nickel plated for vitrified tiles, glass, tiles, artificial stone, ceramics and other brittle materials, drilling operations. Start your hole diagonally, make a round trace and then hold drill straight.

 

3 Pcs SET Diamond Hole Saw Drill Bit Set Granite Glass Tile - Tools 3 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain - 12 -34 - 1 Inch In

3 Pcs SET Diamond Hole Saw Drill Bit Set Granite Glass Tile – Tools 3 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain – 1/2″ -3/4″ – 1″ Inch In

3 Pcs SET Diamond Hole Saw Drill Bit Set Granite Glass Tile – Tools 3 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain – 1/2″ -3/4″ – 1″ Inch In - Segmented design works better and lasts longer. Sizes (shank diameter 3/4″) 1/2″ 3/4″ 1″ note to prolong the life of these bits, use on a low speed with coolant (water/oil). Nickel plated. Excellent results in glass, marble, slate, and tile. The diamond coating on these saws give superior performance and life.

 

5Pcs 20-42Mm Diamond Hole Saw Drill Bit Set For Tile Glass

5Pcs 20-42Mm Diamond Hole Saw Drill Bit Set For Tile Glass

5Pcs 20-42Mm Diamond Hole Saw Drill Bit Set For Tile Glass - -High quality diamond blade, durable. 96″-2. 11″ length 50-50mm/1. 27″-0. -Simply mounted on the ordinary hand drill can be used, need to add coolant when drilling, drilling force should be playful, especially when at the beginning of the drill and to drill through. 20mm/0. -opening neat, smooth, no broken edges, britain does not produce shock phenomenon. -After notching easy decoration, chip easily, no distortion, good stability. -Apply to ordinary glass tile openings, rounded beads, etc. 65″ blade length approx. 16″ shank diameter approx. Package included 5 x hole saw. 3mm/0. 18″, 35mm/1. Description 5pcs 20-42mm diamond hole saw drill bit set for tile glass marble granite cutting specification material high-speed steel blade diameter approx. 7-8mm/0. , Mainly used for glass openings. 31″ quantity 5pcs features -diamond hole saw glass marble tile cutting. 78″, 26mm/1″, 30mm/1. 37″, 42mm/1.

 

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set - Diamond Hole SAW Drill BIT FOR Ceramic Porcelain Tiles Glass Marble Granite Hole Sizes from 6mm to 32mm

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set – Diamond Hole SAW Drill BIT FOR Ceramic, Porcelain Tiles, Glass, Marble, Granite, Hole Sizes from 6mm to 32mm

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set – Diamond Hole SAW Drill BIT FOR Ceramic, Porcelain Tiles, Glass, Marble, Granite, Hole Sizes from 6mm to 32mm - This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, cer. Easy to use, high quality,good performance, long life, excellent for making clean and accurate hole. Start your hole diagonally, make a round trace and then hold drill straight. Size6mm,8mm,10mm,12mm,14mm,16mm,18mm,22mm,26mm,32mm. Always use lubrication (water ), otherwise the diamond core drill will burn, start your hole diagon.

 

Uxcell Metal Cutting Hole Saw Drill Bit Set with Hex Wrenches 30MM

Uxcell Metal Cutting Hole Saw Drill Bit Set with Hex Wrenches, 30MM

Uxcell Metal Cutting Hole Saw Drill Bit Set with Hex Wrenches, 30MM - Color black & silver tone total weight 842g. Package include 1 x hole saw 1 x shaft 1 x twist drill bit 1 x hex wrenches. Diameter of the drill bit hole saw ~1 3/16inch (30mm). This 30mm hole saw provide good strength and great wear resistance. Used to drill large diameter holes, usually through thin metal boards.

 

WORTOOL - 10 Pcs Diamond Coated Core Hole Saw Drill Bit Set Extractor Remover Set Tools For Tiles Glass Ceramic etc 10 Pcs

WORTOOL – 10 Pcs Diamond Coated Core Hole Saw Drill Bit Set. Extractor Remover Set Tools For Tiles Glass Ceramic etc. (10 Pcs)

WORTOOL – 10 Pcs Diamond Coated Core Hole Saw Drill Bit Set. Extractor Remover Set Tools For Tiles Glass Ceramic etc. (10 Pcs) - 100% brand new and high quality. Applicable industry suitable for stone, tiles, ceramics, glass and granite, etc processing. Diamond dust hole saw for any power drill to cut round holes in glass, marble and other materials. Nickel-plated with a diamond dust coating offers superior performance and cutting strength. 10-piece set includes(diameter) 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 30mm.

 

DerBlue 8 pcs Diamond Hole Saw Drill Bit Set - Diamond Hole SAW Drill BIT FOR Ceramic Porcelain Tiles Glass Marble Granite Hole Sizes 10mm14mm18mm20mm26mm32mm45mm50mm

DerBlue 8 pcs Diamond Hole Saw Drill Bit Set – Diamond Hole SAW Drill BIT FOR Ceramic, Porcelain Tiles, Glass, Marble, Granite, Hole Sizes 10mm,14mm,18mm,20mm,26mm,32mm,45mm,50mm

DerBlue 8 pcs Diamond Hole Saw Drill Bit Set – Diamond Hole SAW Drill BIT FOR Ceramic, Porcelain Tiles, Glass, Marble, Granite, Hole Sizes 10mm,14mm,18mm,20mm,26mm,32mm,45mm,50mm - Always use lubrication (water ), otherwise the diamond core drill will burn, start your hole diagon. This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, cer. Size10mm,14mm,18mm,20mm,26mm,32mm,45mm,50mm. Easy to use, high quality,good performance, long life, excellent for making clean and accurate hole. Start your hole diagonally, make a round trace and then hold drill straight.

 

Lot 10 PCS Set Diamond Hole Saw Core Drill Bits 14 to 2

Lot 10 PCS Set Diamond Hole Saw Core Drill Bits 1/4″ to 2″

Lot 10 PCS Set Diamond Hole Saw Core Drill Bits 1/4″ to 2″ - Excellent results in glass, marble, slate, and tile. Note to prolong the life of these bits, use on a low speed with coolant (water/oil). Sizes 1/4″+3/8″+1/2″+3/4″+1″+1 1/4″+1 3/8″+1 1/2″+1 3/4″+2″. The diamond coating on these saws give superior performance and life.

 

ZFE 6mm - 50mm Diamond Hole Saw Drill Bit Set Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain pack of 15Pcs

ZFE 6mm – 50mm Diamond Hole Saw Drill Bit Set Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain pack of 15Pcs

ZFE 6mm – 50mm Diamond Hole Saw Drill Bit Set Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain pack of 15Pcs - Excellent for making clean and accurate hole on glass , tile and marble. Start your hole diagonally, make a round trace and then hold drill straight. 6,8,10,12,14,16,18,20,22,25,26,28,30,40,50mm. Can be used with a standard electric drill(excluding in this item). Always use lubrication (water), otherwise the diamond core drill will burn.

 

Kangnice Hot 9pcs 10-50mm Diamond Coated Glass Marble Ceramic Tile Hole Saw Drill Bit Set

Kangnice Hot 9pcs 10-50mm Diamond Coated Glass Marble Ceramic Tile Hole Saw Drill Bit Set

Kangnice Hot 9pcs 10-50mm Diamond Coated Glass Marble Ceramic Tile Hole Saw Drill Bit Set - Start your hole diagonally, make a round trace and then hold drill straight. Always use lubrication (water), otherwise the diamond core drill will burn. This drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other. Size 10mm, 14mm, 16mm, 18mm, 20mm, 26mm, 32mm, 45mm, 50mm. Materials and only needs water for lubrication,can be used with a standard electric drill.

 

8mm Tiles Marble Diamond Coated Core Hole Saw Drill Bit Set 7 Pcs

8mm Tiles Marble Diamond Coated Core Hole Saw Drill Bit Set 7 Pcs

8mm Tiles Marble Diamond Coated Core Hole Saw Drill Bit Set 7 Pcs - Works better with an electric drill which is not included here. Designed for drilling 5/16 inch diameter holes. Used on glass, ceramic, porcelain, tile, limestone, slate, marble, granite, stone, and fiberglass. Diamond coated tip and sturdy metal body, gives good performance and longer life.

 

eBoot Diamond Drill Bit Coated Grit Hole Saw Set for Tile Granite Glass 5 32 to 1 2 Inch 5 Pieces

eBoot Diamond Drill Bit Coated Grit Hole Saw Set for Tile Granite Glass, 5/ 32 to 1/ 2 Inch, 5 Pieces

eBoot Diamond Drill Bit Coated Grit Hole Saw Set for Tile Granite Glass, 5/ 32 to 1/ 2 Inch, 5 Pieces - Warm notice please add lubricants or water frequently to avoid sparks while using these coated grit hole saw set, can also enhance the working life by doing this. Steel and nickel coated material these drill hole saws are made from steel and nickel coated material, the drill head is covered by diamond particles. Accurate and durable can drill a complete clean and accurate hole from hard surface, no broken edges and no tremor phenomenon, long service life, durable. 5 diamond drill sizes these diamond drill set includes 5 diameter of 5/ 32, 1/ 4, 5/ 16, 3/ 8, 1/ 2 inch, 5 cm in length, good quality diamond drilling tool set. Wide application hole saw set can be applied on wood, porcelain, glass, tile, ceramics, stone, masonry, granite and other hard surfaces, for most common electric drillers.

 

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set - Diamond Hole SAW Drill BIT FOR Ceramic Porcelain Tiles Glass Marble Granite Hole Sizes from 3mm to 20mm

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set – Diamond Hole SAW Drill BIT FOR Ceramic, Porcelain Tiles, Glass, Marble, Granite, Hole Sizes from 3mm to 20mm

DerBlue 10 pcs Diamond Hole Saw Drill Bit Set – Diamond Hole SAW Drill BIT FOR Ceramic, Porcelain Tiles, Glass, Marble, Granite, Hole Sizes from 3mm to 20mm - This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, cer. Easy to use, high quality,good performance, long life, excellent for making clean and accurate hole. Start your hole diagonally, make a round trace and then hold drill straight. Always use lubrication (water ), otherwise the diamond core drill will burn, start your hole diagon. Size3mm,5mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm.

 

WORTOOL - 5 Pcs Diamond Coated Core Hole Saw Drill Bit Set Extractor Remover Set Tools For Tiles Glass Ceramic etc

WORTOOL – 5 Pcs Diamond Coated Core Hole Saw Drill Bit Set. Extractor Remover Set Tools For Tiles Glass Ceramic etc.

WORTOOL – 5 Pcs Diamond Coated Core Hole Saw Drill Bit Set. Extractor Remover Set Tools For Tiles Glass Ceramic etc. - Nickel-plated with a diamond dust coating offers superior performance and cutting strength. 100% brand new and high quality. 5-piece set includes(diameter) 4mm, 6mm, 8mm, 10mm, 12mm. Diamond dust hole saw for any power drill to cut round holes in glass, marble and other materials. Applicable industry suitable for stone, tiles, ceramics, glass and granite, etc processing.

 

10pcs diamond hole saw drill bit set 6mm-30mm for tile ceramic

10pcs diamond hole saw drill bit set 6mm-30mm for tile ceramic

10pcs diamond hole saw drill bit set 6mm-30mm for tile ceramic - Use note 1. 2. The color may have different as the difference display,pls understand. Pls make sure you do not mind before you bid. 2. Always use lubrication (water), otherwise the diamond core drill will burn. Start your hole diagonally, make a round trace and then hold drill straight. Please allow 1-3mm error due tomanualmeasurement. Package included 1 set x diamond hole saw (10pcs) notice 1. Always use lubrication (water), otherwise the diamond core drill will burn. . This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other. Materials and only needs water for lubrication. Description 10pcs diamond hole saw drill bit set 6mm-30mm for tile ceramic glass porcelain marble specifications material steel size 6mm/8mm/10mm/12mm/15mm/16mm/18mm/20mm/22mm/30mm height about 50mm quantity 10pcs features can be used with a standard electric drill.

 

10pcs 6mm-32mm diamond hole saw drill bit set for tile ceramic

10pcs 6mm-32mm diamond hole saw drill bit set for tile ceramic

10pcs 6mm-32mm diamond hole saw drill bit set for tile ceramic - Materials and only needs water for lubrication. 2. 2. Always use lubrication (water), otherwise the diamond core drill will burn. This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other. Pls make sure you do not mind before you bid. Please allow 1-3mm error due tomanualmeasurement. Use note 1. Description 10pcs 6mm-32mm diamond hole saw drill bit set for tile ceramic glass porcelain marble specifications material steel size 6mm/8mm/10mm/12mm/14mm/16mm/18mm/22mm/26mm/32mm height about 50mm quantity 10pcs features can be used with a standard electric drill. The color may have different as the difference display,pls understand. Package included 1 set x diamond hole saw (10pcs) notice 1. Start your hole diagonally, make a round trace and then hold drill straight. Always use lubrication (water), otherwise the diamond core drill will burn.

 

Drillpro 11PCS 3-14 MM HSS Drill Bit  reamer  Diamond Coated Hole Saw Core Drill Bit Set Tool for glass marble tiles 3 4 5 6 7 8 9 10 11 12 14 mm

Drillpro 11PCS 3-14 MM HSS Drill Bit / reamer / Diamond Coated Hole Saw Core Drill Bit Set Tool for glass marble tiles 3 4 5 6 7 8 9 10 11 12 14 mm

Drillpro 11PCS 3-14 MM HSS Drill Bit / reamer / Diamond Coated Hole Saw Core Drill Bit Set Tool for glass marble tiles 3 4 5 6 7 8 9 10 11 12 14 mm - Can be used with a standard electric drill (not included), always use lubrication (water), otherwise the diamond core drill will burn. Total 11 different sizes 3mm / 4mm / 5mm / 6mm / 7 mm / 8mm / 9mm / 10mm / 11 mm / 12 mm / 14 mm. This diamond bit core drilling removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication. New 3 mm assorted 14mm diamond hole covered saw / drill bits (total 11 pieces), suitable for use in the hole on glass, marble, tile or granite. Start the hole diagonally, make a round braid and then hold drill straight.