Makita 13mm HSS TiN metal drill bit KT6531 24 BFWK3 JOSCO Flap Wheel 3pce The auto sense grip BFWK3 JOSCO Flap Wheel 3pce Kit 6 Spindle REMGRIT HOLE SAW 20mm Tungsten carbide particles bonded to alloy steel back Tungsten carbide cutting edge 29mm cutting depth 3 16in thick heavy duty backing plate High heat and abrasion resistance No teeth to dull or chip Cuts extremely hard abrasive materials Resists snagging Eliminates need for drive plate Cuts slate & tile 20mm diameter Product code: BLREGO13M Each bit is made from high speed steel and coated with titanium nitride for added durability and a long life The tip is 135°Split point leading to anti slip when drill on curve surface