3/4" Dry Diamond Core Drill Bit - Great tool to add to your collection for cutting holes for split AC units plumbing, shower/tub grab bars, shower plumbing, faucet, garbage disposal button, gas forge and more projects Excellent Hole Saw for Rough Materials – Fast clean cut through stucco, bricks, concrete, ceramic tile, porcelain, tabby stone, brick, mortar, granite, marble, quartz, etc. Both Dry and Wet will do, and vac will be helpful for dry drilling Work with Angle Grinders and Electric Drills – Package including a 3/4 Inch Diamond Hole Saw with 5/8-11 female thread for most Angle Grinders, as well as an arbor to 3/8” Hex Drill Shank which can fit in Power Drills Sharp and Durable - Diamond Core Bit chews through materials with ease and minimal wear; stays sharp longer than other masonry hole saw bits as long as taken good care to cool sufficiently User Tips - When starting the hole, tilt the high-speed bit at a 45-degree angle to touch the surface, then slowly move the drill back upright and let the tool do the cutting, you will have minimal bit walking and create smooth and clean holes

Dry Diamond Hole Cutter Kit includes：

1 piece of 3/4 inch Diamond Core Bit with female 5/8-11 Thread,

1 piece of male 5/8-11 Thread arbor to 3/8" Hex Drill Shank extension bar.

As a result, it can be used on angle grinders, power drills and other machines which accept 3/8" Hex Shank tool.

For hard and brittle materials:

diamond coating core drill bits are ideal for cutting through all types of tiles, as well as other hard and brittle materials like marble, granite, hard ceramic, brick, block, stone, cured and reinforced concrete faster and easier than other tools.

For occasional-use and professional：

DIY’ers and craftsmen such as electricians, plumbers, heating specialists will find this a very useful hole cutting tool for installing electric switches in walls and floors, water pipe, waste pipes, gas nozzles, air-conditioning, vents, and more

Drill type: Dry and Wet,

Wet drilling for drilling very hard materials, because water will help to cool the bit and get the best life out of it.

Dry drilling is recommended for drilling brittle materials such as bricks, because the water will turn the dust into mud and slow down the speed.

Specifications:

Diameter: 3/4 inch (20mm);

Connection: 5/8-11 arbor; 3/8" hex shank

For Machines: Angle Grinders and Power Drills

No Side-Slot Design: for dust better with angle grinder dust shroud