The drill bit has Long skirt (12CrMo) Carbide tip :YK20 Competitive price and high quality

Red Chisel Drill Bits

Tapered Drill Equipments

Bit Diameter		Buttons	Taper	Water Hole
mm	in	WidthxHeight
30	1 3/16"	9x13.5	7°	2
32	1 17/64"	9x13.5	7°	2
34	1 11/32"	9x13.5	7°	2
36	1 27/64"	9x13.5	7°	2
38	1 1/2"	10x15	7°	2
40	1 37/64"	10x15	7°	2
42	1 21/32"	10x15	7°	2

Rock Drilling Bit