Diamond Rotary Grinding Drill Bits

• Diamond grinding bits, set of 4,
• Designed for a rotary (Dremel) tool, or a standard drill.
• Excellent at grinding away concrete around small detail areas.
• Diamond Rotary Bits are especially useful with the , which usually need fine tuning to get the channel the right width for the stainless steel bars to fit.
• These drill bits are also a must have tool for any faucet or drain holes in concrete that end up being a little too small for sink hardware to fit, and a little concrete needs to quickly be ground away.

Diamond Rotary Grinding Drill Bits Specifications:

• Drill Bit kit includes 4 bits: 1/16", 1/8", 3/16", 1/4".
• Each Drill Bit is about 1-1/2" long, and has between 1/4" and 3/8" of diamond surface.
• Designed to drill Concrete, Masonry, Marble, Rocks, Glass, Carbide, and more.
• Flute-less design puts more diamonds in contact with the grinding surface.
• Do not exceed 30,000 RPM