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Best Choice Baisiky 
20Pcs 3x10mm 80 Grit Mounted Point Cone Shape Sandpaper Deburring Sanding Polishing Flap Wheel with 1/8" Shank Abrasive SIZE：20Pcs Cone Flap Wheel.Shank Diameter x Head Diameter x Length : 3x10x55mm ; Grit:80#; 1/8" Shank。uxcell 
uxcell 1/4-inch Shank 6mm Tip Dia Cone Head Grinding Bit Diamond Mounted Point 5pcs Package Content: 5pcs x Diamond Mounted Point; Weight: 63gJINGLING 
JINGLING 30Pcs 3.2mm Tapered Point Diamond Grinding Bit 1/8" Cone Rotary Burrs for Dremel Suitable for grinding the edges of glass, stone, ceramic, shell, jewelry or hard alloyYsyaxsyt 
Ysyaxsyt 8 Pcs Cone Shape Grinding Stone - 1/4inch Hex Shank Abrasive Stone Mounted Grinding Point for Rotary Tool Drill [Materials]Made of Alumina. and wear resistanceBest Value Joyzan 
Nail Drill Bits, Professional Nails File Bits Set Electric Manicure Pedicure Tungsten Steel Grinding Head Polish Tools C Tungsten Steel Nail Care Bits: This cuticle nail drill bit is easy to use, safe and reliable, and drill bit for gel nailGlarks 
Glarks 54Pcs Abrasive Grinding Stone Points Sanding Drill Bit and Abrasive Flap Wheel Sander 80 Grit Assortment Kit with ♛【Package Detail】: This set includes 42pcs grinding stones and 12pcs abrasive flap wheel sanders. The grinding stone bitLUO KE 
Luo ke 35 Pcs 10mm Rubber Polishing Bits, 3/32'' Shank Silicone Rubber Polishing Kits Grinding Points for Jewelry, Jade, 【Material】 Made of silicone and premium corundum abrasive, good grinding effect and long service lifeHALLMERS HALLMERS 30pcs Assorted Diamond Burrs - 2.3mm Shank Ball Cylinder Cone Oval Head Drill Bits for Grinding Carving Engravi This is a handy and versatile diamond coated burr set for all grinding needs, used for a variety of carving and grindingStaleks STALEKS PRO - Carbide Cutter Bit - Cone Base (Small Cross Cut) I Attachment for Appartative Manicures and Pedicures I Gr Gel and acrylic correction, careful removal of hybrid varnish; gentle treatment of keratotic nails, thick skin and calluＡＷＨＡＯ ＡＷＨＡＯ 3 Pieces Grinding Bit, Grinding Mounted Point Cone Grinding Head Diamond Grinding Burr Drill Bit, 6mm 【Widely Applicable】:The Diamond Grinding Burr Drill Bit,which is easy to use. Suitable for hand electric drills and grinSTARTIST STARTIST 3Pcs Grinding Wheels Bit Grinding Mounted Point Cone Grinding Head,Universal Rotary Tool Grinding Head for Grin 【Product Dimensions】:The total length of the grinding head is 60mm which makes it suitable for detailed work.Dcnhfdsw Dcnhfdsw 8 Pcs Cone Shape Grinding Stone - 1/4inch Hex Shank Abrasive Stone Mounted Grinding Point for Rotary Tool Drill [Materials]Made of Alumina. and wear resistanceLeefasy Leefasy 3 Pieces Grinding Wheels Bit,Grinding Mounted Point Cone Grinding Head,60mm Long Grinding Head for Grinding Carv 【Material】:The Grinding Bit is made of durable diamond grit material, which is environmentally friendly and efficient, huxcell uxcell 2.35mmx5mm Diamond Coated Inverted Cone Mounted Points Grinding Bits 5pcs Head Size: 5 x 3mm/0.2" x 0.12"(Max.D*L); Main Material: Metal,Diamond CoatedSwpeet Swpeet 5 Pcs Cone-Shaped White Flannelette Polishing Wheel Grinding Head with 1/4Handle for Metal Aluminum/Stainless Ste FIT WITH ANY DRILL --- They fit onto any size drill and will not come off while you are using it. Like anything, it willLUO KE Luo ke 35 Pcs 6mm Cone Shape Rubber Polishing Bits, 3/32'' Shank Silicone Rubber Polishing Kits Grinding Points for Jewe 【Material】 Made of silicone and premium corundum abrasive, good grinding effect and long service lifeGeneric Generic 3 Pieces Grinding Wheels Bit,Grinding Mounted Point Cone Shape,Drill Attachment Diamond Grinding Burr Drill Bit 【Material】:The Grinding Bit is made of durable diamond grit material, which is environmentally friendly and efficient, hTopHomer 5 Pcs Tungsten Carbide Rotary Point Burr Die Grinder Bit 1/4" Shank Kit for Woodworking Drilling Metal Carving Engraving PREMIUM MATERIAL---This shank rotary burr kit is made of high quality HSS steel has good process performance, good strenuxcell uxcell 2.9mm Dia Shank 4mm x 14mm Cone Head Felt Mounted Point Grinding Bits 12pcs Product Name : Mounted Point;Felt Head Size : 4 x 14mm / 0.16" x 0.55" (D*L)uxcell uxcell 2.35mmx5mm Diamond Coated Inverted Cone Mounted Points Grinding Bits 10pcs Head Size: 5 x 3mm/0.2" x 0.12"(Max.D*L); Main Material: Metal,Diamond CoatedWeiLaiKeQi WeiLaiKeQi 3 Pieces Grinding Wheels Bit,Grinding Head Cone Shape,Drill Attachment Grinding Mounted Point for Stone Carvi 【Use】:Diamond Grinding Head is suitable for grinding various cast iron, stainless steel, carbide, ceramics, angle iron,MYCENSE MYCENSE 3Pcs Grinding Wheels Bit, Diamond Grinding Burr Drill Bit,Cone Shape Grinding Mounted Point for Metal Stone Cera 【Multi Function】:Grinding Bit For Metal is for DIY crafts, hobbies, home repairs, engraving and polishing, jewelry makinDSC DSC 1500723 Wooden Applicator Cone Ideal for fast and easy fitting of rubber grip on cricket bat handle.SagaSave Diamond Burr Bits, 10Pcs Inverted Cone Mounted Points Grinding Bits for Grinding, Stone Glass Ceramics Carving, Polishin Material: The drill bit is made of high-strength synthetic diamond and high-hardness alloy materials to ensure its durabLUKAS LUKAS A201502032602 Grinding Point EK KE Cone 20 x 32 mm Length: 32 mmuxcell uxcell 6mm Shank 10mm Dia Cone Head Grinding Bit Diamond Mounted Point 2pcs Product Name : Diamond Mounted Point;Tip Shape : ConeFonowx Fonowx 3Pcs Grinding Bit Grinding Head Cone Shape, Diamond Grinding Burr Drill Bit,Grinding Mounted Point for Glass Ston 【Product Dimensions】:The total length of the grinding head is 60mm which makes it suitable for detailed work.Yajuyi Yajuyi 3Pcs Grinding Bit,Diamond Grinding Burr Drill Bit,Cone Shape Grinding Head Grinding Mounted Point for Engraving, 【Multi Function】:Grinding Bit For Metal is for DIY crafts, hobbies, home repairs, engraving and polishing, jewelry makinDRBASJHFO Sanding Discs,Flap Grinding Discs, 10Pcs Cone Shape Mounted Point Grinding Head Sandpaper Flap Sanding Wheel 80-400# wit - Can be installed in the electric drill, high-power electric mill to use.DGZ Store 4 pcs 25mm Stone Rotary Grinding Bits with 1/4 Inch Shank, Aluminum Oxide Mounted Grinding Point for Grinding, Polishing High-Quality Materials: polishing bit Made of 80 grit aluminum oxide, excellent polishing effect and extremely durable.HALLMERS HALLMERS 5pcs Diamond Burrs Round Nose Taper Head 4mm Diameter - 2.35mm Shank Cone Arrow Drill Bits for Grinding Carving This is a handy and versatile diamond coated burr set for all grinding needs, used for a variety of carving and grindingSagaSave Diamond Burr Bits, 10Pcs Inverted Cone Mounted Points Grinding Bits for Grinding, Stone Glass Ceramics Carving, Polishin Material: The drill bit is made of high-strength synthetic diamond and high-hardness alloy materials to ensure its durabHALLMERS HALLMERS 5pcs Diamond Burrs Cone Head 4mm Diameter - 3mm Shank Tapered Pointed Drill Bits for Grinding Carving Polishing This is a handy and versatile diamond coated burr set for all grinding needs, used for a variety of carving and grindingHALLMERS HALLMERS 5pcs Diamond Burrs Cone Head 8mm Diameter - 3mm Shank Tapered Pointed Drill Bits for Grinding Carving Polishing This is a handy and versatile diamond coated burr set for all grinding needs, used for a variety of carving and grindingSagaSave Diamond Burr Bits, 10Pcs Inverted Cone Mounted Points Grinding Bits for Grinding, Stone Glass Ceramics Carving, Polishin Material: The drill bit is made of high-strength synthetic diamond and high-hardness alloy materials to ensure its durabMYCENSE MYCENSE 3Pcs Grinding Wheels Bit, Diamond Grinding Burr Drill Bit,Cone Shape Grinding Mounted Point for Metal Stone Cera 【Multi Function】:Grinding Bit For Metal is for DIY crafts, hobbies, home repairs, engraving and polishing, jewelry makinLoopunk Loopunk 50 Pro Disc Cones, Agility Soccer Cones with Carry Bag and 2 Whistle, Agility Training Equipment for Training, K 【Material】: These sports cones are made of durable plastic, Drills cones are stackable for easy carring from place to plAexit Aexit 4Pcs (Abrasives) Abrasives Polishing Grinding Cone Mounted Point (94ry833qf309) Tool 3mmx15mmx6mm Product Name : Mounted Point;HeadSize : 6 x 15mm / 0.24" x 0.59" (D*L)XYZOOM XYWHPGV Polishing Grinding 5mm Dia Cone Head Ceramic Mounted Point Blue 4Pcs(370d0 eebfe 7fe21 6b128 3e9f6 3def2 Head Size: 5 x 14mm/0.2" x 0.55"(Max.D*L); Shank Size: 3 x 30mm/0.12" x 1.2"(D*L)Aexit Aexit 2.35mmx2mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (31ry830qf459) Bits 20pcs Head Size: 2 x 1mm/0.08" x 0.04"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 4pcs (Abrasives) 12mm Cone Metallic Jewelry Polishing Grinding Point Mounted (87ry217qf455) Head Gray Product Name : Mounted Point;Material : Abrasives, MetalNGe 20Pcs Rubber Bullet Head Polishing Burr, 4mm/6mm/8mm/10mm Set, Green Rubber Cone Head Mounted Point Grinding Bit, 1/8" S Set of rubber bullet head polishing burr, including sizes of 4mm/6mm/8mm/10mm, each of 5 pieces.Aexit Aexit 12mmx3mmx46mm (Abrasives) Cone Head Felt Mounted Grinding Point Buffing Tool (66ry783qf473) Polishers 10pcs Head Size: 12 x 21mm/0.5" x 0.8"(Max.D*L); drill hole Size: 3mm/0.12"(D)Aexit Aexit 3mm (Abrasives) Dia drill hole 3mm Cone Head Ceramic Mounted Point Grinding Bit (10ry107qf106) Pink 5pcs Product Name: Ceramic Mounted Point; Package Content: 5pcs x Ceramic Mounted PointAexit Aexit 3mm (Abrasives) Dia drill hole 6mm Cone Head Ceramic Mounted Point Grinding Bit (39ry466qf94) Pink 5pcs Product Name: Ceramic Mounted Point; Package Content: 5pcs x Ceramic Mounted PointAexit Aexit 3mm (Abrasives) Dia drill hole 5mm Cone Head Ceramic Mounted Point Grinding Bit (42ry394qf39) Pink 5pcs Product Name: Ceramic Mounted Point; Package Content: 5pcs x Ceramic Mounted PointAexit Aexit 3mm (Abrasives) Dia drill hole 4mm Cone Head Ceramic Mounted Point Grinding Bit (54ry750qf226) Pink 5pcs Product Name: Ceramic Mounted Point; Package Content: 5pcs x Ceramic Mounted PointAexit Aexit 3mm (Abrasives) Dia drill hole 10mm Cone Head Ceramic Mounted Point Grinding Bit (48ry333qf448) Pink 5pcs Product Name: Ceramic Mounted Point; Package Content: 5pcs x Ceramic Mounted PointAexit Aexit 12mm (Abrasives) Dia Abrasive Bit Polishing Cone Point Grinding Mounted Head (28ry851qf480) 15 Pcs Product Name : Grinding Head;Head Size : 12 x 18mm / 0.47" x 0.7"(D*L)Aexit Aexit 3mm (Abrasives) Dia drill hole 8mm Cone Head Ceramic Mounted Point Grinding Bit (97ry63qf390) Pink 5pcs Product Name: Ceramic Mounted Point; Package Content: 5pcs x Ceramic Mounted PointSagaSave Abrasive Grinding Head, Abrasive Stone Mounted Points Head Kit for Ceramic, Wood and Metal - 3mm Shank and 4mm Cone Head Made of high-quality abresive materia, which is high hardness, good wear resistance and uniform particles.Aexit Aexit 3mm (Abrasives) Dia drill hole 12mm Cone Head Ceramic Mounted Point Grinding Bit (38ry479qf301) Pink 5pcs Product Name: Ceramic Mounted Point; Package Content: 5pcs x Ceramic Mounted PointAexit Aexit 3mm (Abrasives) Dia Abrasive Bit Polishing Tool Cone Point Grinding Mounted Head (37ry643qf641) 10 Pcs Product Name : Grinding Head;Head Size : 3 x 13mm / 0.1" x 0.5"(D*L)Aexit Aexit 6mm (Abrasives) Dia Abrasive pipes tubes Polishing Tool Cone Point Grinding Mounted Head (50ry704qf58) 20 Pcs Product Name : Grinding Head;Head Size : 6 x 18mm / 0.24" x 0.7"(D*L)Aexit Aexit 4mm (Abrasives) Dia Abrasive pipes tubes Jewelry Polishing Tool Cone Point Grinding Head (85ry251qf80) 10 Pcs Product Name : Grinding Head;Head Size : 4 x 15mm / 0.16" x 0.6"(D*L)Aexit Aexit 3mm (Abrasives) Dia drill hole 4mm Cone Head Ceramic Mounted Point Grinding Bit (78ry464qf393) Pink 10pcs drill hole Size: 3 x 33mm / 0.12" x 1.3"(D*L); Total Length: 44mm / 1.7"Aexit Aexit 3mm (Abrasives) Dia drill hole 3mm Cone Head Ceramic Mounted Point Grinding Bit (38ry80qf61) Pink 10pcs Product Name: Ceramic Mounted Point; Package Content: 10pcs x Ceramic Mounted PointAexit Aexit 3mm (Abrasives) Dia drill hole 5mm Cone Head Ceramic Mounted Point Grinding Bit (95ry369qf191) Pink 10pcs Product Name: Ceramic Mounted Point; Package Content: 10pcs x Ceramic Mounted PointAexit Aexit 3mm (Abrasives) Dia drill hole 6mm Cone Head Ceramic Mounted Point Grinding Bit (75ry104qf302) Pink 10pcs Product Name: Ceramic Mounted Point; Package Content: 10pcs x Ceramic Mounted PointSagaSave Abrasive Grinding Head, Abrasive Stone Mounted Points Head Kit for Ceramic, Wood and Metal - 3mm Shank and 10mm Cone Hea Made of high-quality abresive materia, which is high hardness, good wear resistance and uniform particles.Aexit Aexit 6mm (Abrasives) Dia Abrasive Bit Jewelry Polishing Cone Point Grinding Mounted Head (55ry128qf511) 10 Pcs Product Name : Grinding Head;Head Size : 6 x 18mm / 0.24" x 0.7"(D*L)Aexit Aexit 4mm (Abrasives) Dia Abrasive Bit Jewelry Polishing Tool Cone Point Grinding Head (43ry649qf283) 20 Pcs Product Name : Grinding Head;Head Size : 4 x 15mm / 0.16" x 0.6"(D*L)Aexit Aexit 3mm (Abrasives) Dia drill hole 4mm Cone Head Ceramic Mounted Point Grinding Bit (35ry120qf594) Pink 15pcs Product Name: Ceramic Mounted Point; 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drill hole Size: 3mm/0.12"Aexit Aexit 3mmx10mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (46ry650qf585) Bits 2pcs Head Size: 10 x 4mm/0.4" x 0.16"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 6mm (Abrasives) Dia Abrasive Bit Polishing Tool Cone Shape Point Grinding Head (23ry271qf200) 5 Pcs Product Name : Grinding Head;Head Size : 6 x 18mm / 0.24" x 0.7"(D*L)Aexit Aexit 3mmx12mm (Tool holder) Diamond Coated Inverted Cone Mounted Points Grinding (12ry30qf530) Bits 5pcs Head Size: 12 x 5mm/0.47" x 0.2"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 3mmx10mm (Tool holder) Diamond Coated Inverted Cone Mounted Points Grinding (12ry816qf397) Bits 5pcs Head Size: 10 x 4mm/0.4" x 0.16"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 10mmx3mm (Abrasives) Cone Head Round drill hole Felt Mounted Grinding Point Buffing (87ry702qf190) Tool 12pcs Head Size: 10 x 19mm/0.4" x 0.7"(Max.D*L); drill hole Size: 3mm/0.12"Aexit Aexit 3mmx16mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (71ry498qf15) Bits 5pcs Head Size: 16 x 5.5mm/0.6" x 0.2"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 3mmx14mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (94ry625qf196) Bits 5pcs Head Size: 14 x 5mm/0.55" x 0.2"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 3mmx14mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (14ry561qf641) Bits 2pcs Head Size: 14 x 5mm/0.55" x 0.2"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 2.35mmx4mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (25ry699qf753) Bits 5pcs Head Size: 4 x 2.5mm/0.16" x 0.1"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 3mmx16mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (39ry663qf418) Bits 2pcs Head Size: 16 x 5.5mm/0.6" x 0.2"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 6mmx3mm (Abrasives) Cone Head Round drill hole Felt Mounted Grinding Point Buffing (68ry122qf622) Tool 12pcs Head Size: 6 x 19mm/0.24" x 0.7"(Max.D*L); drill hole Size: 3mm/0.12"Aexit Aexit 8mmx3mm (Abrasives) Cone Head Round drill hole Felt Mounted Grinding Point Buffing (31ry619qf235) Tool 12pcs Head Size: 8 x 19mm/0.31" x 0.7"(Max.D*L); drill hole Size: 3mm/0.12"Aexit Aexit 5mmx3mm (Abrasives) Cone Head Round drill hole Felt Mounted Grinding Point Buffing (79ry860qf220) Tool 12pcs Head Size: 5 x 17mm/0.2" x 0.7"(Max.D*L); drill hole Size: 3mm/0.12"Aexit Aexit 2.35mmx5mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (88ry423qf576) Bits 5pcs Head Size: 5 x 3mm/0.2" x 0.12"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 2.35mmx6mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (42ry853qf114) Bits 5pcs Head Size: 6 x 3mm/0.24" x 0.12"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit Green (Abrasives) 3mm Cone Tip Mounted Grinding Point Jewelry Sanding Sharpening (76ry632qf120) Tool 5pcs Product Name : Mounted Grinding Point;Material : Abrasives, MetalAexit Aexit 4mmx3mm (Abrasives) Cone Head Round drill hole Felt Mounted Grinding Point Buffing (46ry31qf169) Tool 12pcs Head Size: 4 x 15mm/0.16" x 0.6"(Max.D*L); drill hole Size: 3mm/0.12"Aexit Aexit 2.35mmx3mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (27ry352qf234) Bits 20pcs Head Size: 3 x 1.5mm/0.12" x 0.06"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 2.35mmx6mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (35ry653qf627) Bits 10pcs Head Size: 6 x 3mm/0.24" x 0.12"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 8mm (Abrasives) Dia Abrasive Bit Polishing Tool Cone Shape Point Grinding Head (81ry159qf626) 10 Pcs Product Name : Grinding Head;Head Size : 8 x 20mm / 0.3" x 0.79"(D*L)Aexit Aexit 2.35mmx5mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (50ry403qf257) Bits 10pcs Head Size: 5 x 3mm/0.2" x 0.12"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 2.35mmx4mm (hand operated tools) Diamond Coated Inverted Cone Mounted Points Grinding (94ry653qf251) Bits 10pcs Head Size: 4 x 2.5mm/0.16" x 0.1"(Max.D*L); Main Material: Metal,Diamond CoatedAexit Aexit 12mm (Abrasives) Dia Abrasive pipes tubes Polishing Tool Cone Shape Point Grinding Head (39ry361qf317) 10 Pcs Product Name : Grinding Head;Head Size : 12x 18mm / 0.3" x 0.7"(D*L)Aexit Aexit 3mm (Abrasives) Dia Abrasive Bit Polishing Tool Cone Shape Point Grinding Head (51ry455qf75) 20 Pcs Product Name : Grinding Head;Head Size : 3 x 13mm / 0.1" x 0.5"(D*L)Aexit Aexit 12mmx6mm (Standard Parts) Cone Head Ceramic Mounted Point Grinding Bit 3mm Dia drill (84ry87qf315) hole 10pcs Head Size: 12 x 6mm / 0.47" x 0.24"(L*D); drill hole Size: 30 x 3mm / 1.2" x 0.12"(L*D)Aexit Aexit 16mmx10mm (Standard Parts) Cone Head Ceramic Mounted Point Grinding Bit 3mm Dia drill (88ry348qf100) hole 10pcs Head Size: 16 x 10mm / 0.63" x 0.4"(L*Max.D); drill hole Size: 28 x 3mm / 1.1" x 0.12"(L*D)Aexit Aexit 16mmx8mm (Standard Parts) Cone Head Ceramic Mounted Point Grinding Bit 3mm Dia drill (77ry233qf254) hole 10pcs Head Size: 16 x 8mm / 0.63" x 0.3"(L*Max.D); drill hole Size: 28 x 3mm / 1.1" x 0.12"(L*D)Aexit Aexit 16mmx8mm (Standard Parts) Cone Head Ceramic Mounted Point Grinding Bit 3mm Dia drill (81ry539qf109) hole 15pcs Head Size: 16 x 8mm / 0.63" x 0.3"(L*Max.D); drill hole Size: 28 x 3mm / 1.1" x 0.12"(L*D)Aexit Aexit 16mmx10mm (Standard Parts) Cone Head Ceramic Mounted Point Grinding Bit 3mm Dia drill (24ry146qf186) hole 15pcs Head Size: 16 x 10mm / 0.63" x 0.4"(L*Max.D); drill hole Size: 28 x 3mm / 1.1" x 0.12"(L*D)Aexit Aexit 6mm (hand operated tools) Dia drill hole Cone Head Diamond Mounted Point Grinding Bit (21ry747qf710) Silver Tone Head Size: 10 x 16mm/0.4'' x 0.63''(Max.D*L); Main Material: MetalUS Forge US Forge 752 Mounted Grinding Point A-5 3/4-Inch by 1-1/8-Inch Cone Quality aluminum-oxide high-speed grinding points