Mining Tools Rock Drill Bits Tapered Button Bits 

We RUILISTER produce all kinds of rock drilling tools, such as tapered chisel bits, tapered cross bits, tapered button bits, thread button bits, shank adapter, coupling, tapered rod, extension rod, dome bits for reaming, DTH adapter, etc.
Comparing with taper chisel and cross bits, taper button bits have higher technology, much longer primary drilling time and higher drilling efficiency. According to the tungsten carbide insert, button bits can be divided into types of hemispherical, conical and parabolic button, etc.
Button bits with hemispherical button is for high bearing capacity and abrasive resistance while conical button and parabolic button are for high drilling speed and low abrasive resistance.
Made with high quality of raw material through special heat treatment ,especially, tungsten carbide of tapered button bits are from Boart long year,widely applied in Hand Hold ( short-hole) drilling system for dimensional stone quarrying.
Diameter of bits from 30mm to 50mm with 4 ,6,7,11,12 degree, premium alloy tapered drill steel with Hexagonal.22mm and Hexagonal.25mm,The deliver capacity are very strong and can completely meet customer's requirements on delivery design,number of buttons is 4,5,6,7,8,9,7 buttons is very popular for hold held (short holes ) and blast drilling system.

Tapered Button Bits
Drill Bits	Diameter	Tip No. ×Diameter			Hole No.		Taper	Weight (kg)	Part No.
	mm	Front	Gauge	Angle	Front	Side
Short Skirt Button Bits	28	1×7	3×7	20°	1	1	12°	0.20	1431-281222-17/37-45-51
	30	1×7	3×7	40°	1	1	12°	0.22	1431-301222-17/37-45-51
	30	2×7	4×7	30°	1	1	12°	0.22	1431-301222-27/47-45-51
	32	2×7	5×7	40°	2	1	12°	0.24	1431-321222-27/57-45-51
	32	1×8	3×8	35°	1	1	7°	0.24	1431-32722-18/38-40-53
	32	1×8	3×8	35°	1	2	11°	0.24	1431-321122-18/38-45-51
	32	2×7	5×7	40°	1	1	11°	0.24	1431-321122-27/57-45-51
	34	2×7	4×7	40°	1	1	7°	0.29	1431-34722-27/47-42-53
	34	2×7	4×7	40°	1	1	11°	0.29	1431-341122-27/47-45-51
	34	2×7	5×8	35°	1	1	12°	0.29	1431-341222-27/58-45-51
	36	2×7	5×8	35°	1	1	7°	0.37	1431-36722-27/58-42-53
	36	2×7	4×7	40°	1	1	11°	0.36	1431-361122-27/47-45-51
	36	2×7	5×9	35°	1	1	12°	0.37	1431-361222-27/59-45-51
	38	1×8	3×9	35°	1	1	7°	0.38	1431-38723-18/39-42-53
	38	2×8	3×9	40°	1	1	11°	0.39	1431-381122-28/39-45-51
	38	2×7	5×9	35°	1	1	12°	0.40	1431-381222-27/59-45-51
	40	1×9	3×10	30°	1	1	7°	0.40	1431-40723-19/310-40-53
	40	1×9	3×9	40°	1	1	11°	0.40	1431-401122-19/39-45-51
	42	1×9	3×10	30°	1	1	7°	0.43	1431-42723-19/310-40-53
Long Skirt Button Bits	32	2×7	5×7	35°	1	1	7°	0.30	1435-32722-27/57-45-51
	33	2×7	5×7	35°	1	1	7°	0.31	1435-33722-27/57-45-51
	35	2×7	5×8	35°	1	1	7°	0.36	1435-35722-27/58-45-51
	38	2×7	5×9	35°	1	1	7°	0.41	1435-38723-27/59-45-51
	41	2×7	5×9	35°	1	1	7°	0.42	1435-41723-27/59-45-51
	32	2×7	5×7	35°	1	1	11°	0.30	1435-321122-27/57-45-51
	33	2×7	5×7	35°	1	1	11°	0.31	1435-331122-27/57-45-51
	35	2×7	6×7	40°	2	1	11°	0.35	1435-351122-27/67-45-51
	38	2×7	5×9	35°	1	1	11°	0.41	1435-381122-27/59-45-51
	41	2×7	5×9	35°	1	1	11°	0.42	1435-411122-27/59-45-51
	32	2×7	5×7	35°	1	1	12°	0.30	1435-321222-27/57-45-51
	35	2×7	5×9	35°	1	1	12°	0.38	1435-351222-27/59-45-51
	36	2×7	5×9	35°	1	1	12°	0.39	1435-361222-27/59-45-51
	38	2×7	5×9	35°	1	1	12°	0.41	1435-381222-27/59-45-51
	41	2×7	5×9	35°	1	1	12°	0.42	1435-411222-27/59-45-51
Remark: We can produce the button bits according to customer's sample or demand.