R28 Drilling Tool

Detail

Parameters

Sansung rock drilling thread button bits are widely used in all kinds of mining, drilling, quarrying, engineering, construction, water well drilling, oil exploring industries etc.

The thread button bits are made with high quality of best quality alloy steel bar and tungsten carbides with superior wear resistance and impact toughness superior, through heat treatment so that it can withstand the toughest rock drilling demands, and transmit intensive impact energy into the rock with the least possible loss of energy.

Thread Button Bit	Diameter		Carbide size(mm)		Flushing hole		Weight
	mm	in	Front	Gauge	Front	Side	(kg)
	mm	in	Qty×size	Qty×size	Front	Side	(kg)
R28(1 1/8")	35	1 3/8	2×7	5×8	1	1	0.44
	38	1 1/2	2×7	5×9	1	1	0.56
	41	1 5/8	2×8	5×9	1	2	0.61
	45	1 3/4	2×8	5×10	1	2	0.78
	48	1 7/8	2×9	5×11	1	2	0.8
	51	2	2×10	5×11	1	2	1.18
	57	2 1/4	2×10	5×12	1	2	1.26

Reaming tools	D		Flushing hole (mm)		Buttons (mm)
Reaming tools	mm	inch	Front	Gauge	Front	Gauge
Pilot bit 6° taper	40	1 37/64	2×5	2×5.5	2×8	4×9
Reaming bit 6° taper	76	3	–	–	–	8×11