Tapered Chisel Bits,Cross Bits and Button Bits

We supply all kinds of tapered chisel bits,cross bits and button bits (taper 7, 12 degree) ,Mostly use for Hand rock drill.We make them by alloy steel by forging and select suitable tungsten carbide insert by customers?equests according to their stone types.such as for, Limestone, Marble, Granite etc.
Specification:chisel bits:20mm-45mm;cross bits:32mm-50mm;button bits:32mm-50mm tapered drill rod:H22x108mm,H19x108mm shank.Length 400mm-4800mm.

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	Bit Diameter	Buttons,mm			Taper	Water Hole	Part No	Rock formation
	mm	Guage	Front	Angle
	36	3X8	1X8	25°	7°	2	Q436-722	For soft and middle hard formations
	38	3X8	1X8	25°	7°	2	Q438-722
	40	3X9	1X8	25°	7°	2	Q440-722
	42	3X9	1X9	25°	7°	2	Q442-722
	32	3X8	1X8	25°	7°	3	Q432-722	For soft and abrasive rock.front and side flushing
	34	3X8	1X8	25°	7°	3	Q434-722
	36	3X8	1X8	25°	7°	3	Q436-722
	38	3X9	1X8	25°	7°	3	Q438-722
	40	3X9	1X8	30°	7°	3	Q440-722
	42	3X9	1X9	30°	7°	3	Q442-722
	32	5X7	2X7	35°	7°	3	Q732-722	For medium hard to hard rock .front and side flushing
	34	5X7	2X7	35°	7°	3	Q734-722
	36	5X9	2X9	35°	7°	3	Q736-722
	40	5X9	2X9	35°	7°	3	Q745-722