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305mm To 381mm Dth Drill Bit For 12 Inch High Air Pressure Dth Hammer

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305mm To 381mm Dth Drill Bit For 12 Inch High Air Pressure Dth Hammer

Large Image : 305mm To 381mm Dth Drill Bit For 12 Inch High Air Pressure Dth Hammer

Product Details:

Place of Origin:	China
Brand Name:	MIROC
Certification:	ISO
Model Number:	SD12-336mm DTH Drill Bit

Payment & Shipping Terms:

Minimum Order Quantity:	1
Price:	Negotiation
Packaging Details:	Standrad export packaging or customized
Delivery Time:	15-20 days
Supply Ability:	2000pcs per month

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Detailed Product Description

Material:	Hign Manganese Steel	Use:	Well Drilling
Model Type:	SD12	Face Design:	Concave, Convex, Flat
Carbide Design:	Dome, Parabolic, Ballistic	Processing Type:	Forging
Diameter:	305mm To 381mm	Shank Type:	SD12
Highlight:	305mm dth drill bit , 381mm dth drill bit , high air pressure dth drill bit

SD12 DTH Bit

DTH bit is the tool cutting rocks, and subject to severe stress from the striking piston as well as from the abrasive cuttings passing the bit at high velocity. When selecting the right bit for optimum performance you have to balance penetration against bit life. On occasion you can successfully sacrifice bit life for penetration, remember the rule of thumb that states that a 10% increase in penetration covers at least a 20% loss in bit life.We can design and manufacture according to customer's requirements of the bit diameter, the NO. of air holes, carbide buttons and face shape.

305mm To 381mm Dth Drill Bit For 12 Inch High Air Pressure Dth Hammer 0

Specification

The Drill Head Diameter (mm)	No. of Air Holes	Gauge Buttons	Front Buttons	Weight (kg)
305	4	12*18mm	36*16mm	156
311	4	12*18mm	36*16mm	168
330	4	16*18mm	42*16mm	180
356	4	16*19mm	48*16mm	191
381	4	16*19mm	48*16mm	200