Best Hex Hole Enlarging Drill Bits in 2026

Diameter: 10mm; Workable length: 50mm; Thread: 5/8"-11; Total length: 75mm; Grit #50/60

Save your money: just one standard core bit plus one our finger bit, you can create many different hole sizes, without buying several different core bits.

Attention: not designed to drill holes but to enlarge and milling existing holes.

【Size】Diameter: 2" (50mm), Threads: 5/8"-11, Grit: #80, Degree: 60, Total length: 55mm, Working Depth:46mm, Hex Shank Adapter Dia: 3/8" (10mm)

【Function】It is a versatile milling bits designed to enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, Granite, Tiles and Marble. The beveling chamfer bit is a must have tile tool. Also easily create round shape indentation to accommodate pipes or electric wire lines

【Fit for】The Diamond Chamfer Bit is with 5/8"-11 Thread for most Angle Grinders, and package also includes a 3/8” Hex Shank Adapter for most electric or hand drills

【Restart Your Garden Fun】 Forget Your Soil Shovel, Don't Be More Tired. Auger Drill Bit For Planting Saved Many Hours Of Digging. Quickly Loosen Up Packed Soil, Improving Double The Work Efficiency At Least, Good Gift For Your Dad Mom Husband Or Wife.

【Great Digging Holes Partner】 Auger Drill Bit Really Do A Good Job, Churning Up The Soil In Garden, Vegetable Field, Flower Pot, Sand. Even Making The Ice Holes. Suits For Planting Bulbs, Flower, Potted Plants, Vegetables. Also Compost, Transplant, Digging Holes For Stakes And Etc. Great For Helping Remove Last Season’s Plants, Digging Holes For New Plants Or Fertilizer.

【Durable Materials Design】 Garden Auger Bit Is Made Of Heavy Duty Steel With Black Painted Finished, High Hardness, Good Wear Resistance, Suitable For Soft Soil, Not For Use With Hard Soil or Solid Rock, If It Catches A Rock, Please Moving Around In Hole Like Stirring. The Drill Bit Works With Any 3/8 inches Non-Slip Drill Or Larger Chucked Drill, 18v Or Greater Drill Recommended.

Must Have Tile Tool: This Diamond Chamfer Bit designed to Bevel, Enlarge Holes, Trim, Shape, Smoot Rough Cutting Surfaces in Porcelain, Hard Ceramic Tiles, Granite, Quartz and Marble Countertop and more

Multi-Functional: The Diamond Cone Countersink Drill Bit equals a bunch of different sizes core bits; with one core bit to start a hole, this bit can enlarge the hole into any size between 0 to 2inch (0~50mm)

Fit Angle Grinders and Electric Drills: The Diamond Chamfer Bit built with 5/8 -11 Thread for most Angle Grinders, and package also includes a 3/8” Hex Shank Adapter for most electric drills

【APPLICATION】 2 inch diameter Diamond beveling chamfer bits for EXISTING HOLE size from 0-2 inch. NOT A CORE BIT FOR DRILLING HOLES, but a countersink bit for enlarging, shaping, trimming, cleaning holes.

【FUNCTION】 The diamond countersink drill bits is designed to enlarge, trim, shape the EXISTING HOLES in tile, granite, ceramic and marble. Also suitable to easily shape side indentation required to pipes or electric wires.

【COST-SAVING TOOLS】 With just our diamond beveling chamfer bits and one standard core bit, you can make many different hole sizes, no need to buy several different bits, save your money.

✓Longer Working Life & Save Money Countersink Drill Bit - This diamond beveling chamfer bit is made of high quality diamond and durable metal. High in hardness and strength, even diamond particle will bring a smooth beautiful hole finish. The high quality of the diamonds provides longer working life. You can use it to make holes of many different sizes(0-2"), no need to purchase several different core bits.

✓Easy to Use & Save Time Countersink Drill Bit - The KEMIVTON diamond beveling chamfer bit designed to enlarge , shape and/or round bevel existing holes in ceramic, glass, granite stone tile marble etc. Perfect combination of the cutter head and the base, the vacuum brazed diamond countersink drill bit is very useful to improve the edge finishing of exposed holes.

✓Countersink Drill Bit - Reduce risk of material cracking - KEMIVTON diamond beveling chamfer bits is a 60 degree diamond cones beveling bit, degree 60 inclined surface relieves pressure on chamfers, helping to reduce risk of cracking with standard and large format tiles subjected to tension to ensure more effective cleaning and trimming. Because it deduces heat buildup, so the faster the diamond drill bit spun, the better diamond milling bits works.

Diameter 25mm(1"), 50mm workable length, Connection 5/8"-11 thread,Total Length: 65mm,Grit #45/50

It is not designed to make holes but to shape and enlarge existing holes in ceramic tile porcelain marble granite.

Just one standard core bit plus one our finger bit, you can create many different hole sizes, without buying several different core bits.

【Dimensions】-Diameter 20mm (4/5 Inch),Chamfer Angle:Top Angle 56 degree,Total length 40mm,Workable length 20mm,Hex Shank, for Electric Drill,if fix it on Hammer Drill,please turn off Hammer Mode;

【Apply to】-Not for drilling holes,but designed to Wet or Dry Enlarge, Shape, Polish,Clean,Trim,Finish,Round or Bevel Existing Rough Holes of Marble Ceramic Porcelain Tiles Granite Stone.

【Vacuum Brazed Diamond Technology】-Stronger and more Uniform layer of diamonds for Enhanced performance and longer tool life.

Shank: Hex Shank,for Electric Drill,if fix it on Hammer Drill,please turn off Hammer Mode; Diameter:50mm(2 Inch),Chamfer Angle:Top Angle 60 degree,Total length:73.5mm,Workable length:43.5mm

Application:This is a versatile diamond milling finger bit, designed to Wet or Dry Enlarge, Shape, Polish,Clean,Trim,Finish,Round or Bevel Existing Rough Holes of Marble Ceramic Porcelain Tiles Granite Stone

Features:You can easily produce 0-50mm hole size with just One Standard Diamond Core Bit Plus one Diamond Chamfer Cone Tile Bit, cost-effective

【Package Includes】4 PCS in total:3pcs Tile Hole Saw 1/4",5/16",3/8"(6/8/10mm)+1pc Hex shank Adapter to 5/8-11" thread

【Vacuum Brazed Diamond Technology】More Heavy Duty and Wear Resistant than electroplated diamond bit,provide very high efficiency,cuts faster,durable and sturdy.

【Wide Compatibility】Diamond drill bit set for Wet/Dry Drilling/Shaping/Enlaging/Cutting on various materials,like Porcelain Ceramic Tile Granite Marble Stone.