ST58 Drill bits	Dia.		Tip size (mm)			Flushing hole No.		Weight	Part No.
	mm	inch	Front	Gauge	Angle	Side	Front
Normal thread
	89	3 1/2"	12x6	12x8	35°	2	1	4.1	N89T58-513/813
	89	3 1/2"	13x6	13x8	35°	2	1	4.1	N89T58-613/813
	89	3 1/2"	13x4,13x1	13x8	35°	4	-	4.1	N89T58-513/813
	89	3 1/2"	12x4,12x2	12x8	35°	4	-	4.1	N89T58-612/812
	95	3 3/4"	13x4,13x1	14x8	35°	4	-	4.6	N95T58-513/814
	102	4"	14x6	14x8	35°	2	-	6	N102T58-614/814
	102	4"	13x6	16x8	35°	2	1	6	N102T58-613/816
	115	4 1/2"	14x6	16x8	35°	2		7	N115T58-614/816
Retrac thread
	89	3 1/2"	12x6	14x8	35°	2	1	5.1	R89T58-612/814
	89	3 1/2"	13x4,13x1	13x8	35°	4	-	5.1	R89T58-513/813
	102	4"	12x7	14x8	35°	2	1	6.5	R102T58-712/814
	115	4 1/2"	14x6	16x8	35°	2	-	8.5	R115T58-614/816

Thread button drill bits are made by high quality alloy steel bar and tungsten carbides. Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks. Besides, we can design customized thread button drill bits according to different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.
(1)Thread: R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, T60
(2)Diameter: 38-152mm.

Super Quality--- Our button bit is made with high quality of best quality alloy steel bar and tungsten carbides, 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.

Before Official Order, please confirm below informations:
(1) Thread Type
(2) Standard or Retrac
(3) Bit button shape (tip shape)--Spherical or Ballistic
(4) Bit face shape--Drop Center, Flat Face, Convex, Concave, etc...
 

 

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