【Size】Total length 65mm, diamond height 10mm, working depth 30mm, shank length 20mm, generally hand drill in 2000-5000RPM, the faster the better, the slower then the shorter life span.
【Machine】Compatible with most popular electric drills, angle grinders and bench drills, do not use impact or hammer mode.
【Widely Use】 Dry Diamond Core Bit set is able to drill all types of tiles, porcelain, granite, ceramic, glass, marble, stone, masonry brick.
【Good Performance】Triangle shank design for stable clamping, smooth and easy drilling, fast and smooth cutting, be more efficient and durable.
1-1/8" Forstner Drill Bit,Hex Shank Carbide Tipped Wood Drilling Wood Tool Punching Bit(28mm)
KWD 4.500
Round Shank Auger Power Drill Adapter,Earth Auger Adapter,Electric Drill to Ground Drill Conversion Head, 2 Slots and 2 Pits, SDS Plus x Fit (2 Slots)
KWD 4.500
70mm / 2-3/4 inch Concrete Hole Saw with SDS Plus Shank Connecting Rod, Tungsten Carbide Teeth Cement Hole Saw for Cement Brick Concrete Stone Wall (70mm / 2-3/4 inch)
KWD 9.500
XtremepowerUS 8PC HSS Silver and Deming Drill Bits Set with Metal Case
KWD 14.500
