Power Drilling Bit Multi Function 11 Degree Drilling Mining 7 Button Taper Button Bit 38mm for Rock Drill Gold Mining Quarry

Product Overview

Description

Power Drilling Bit Multi Function 11 Degree Drilling Mining 7 Button Taper Button Bit 38mm for Rock Drill Gold Mining Quarry 

 

 

Different rock formation and rock drills require different taper angles. When drilling with high impact hydraulic rock drills in medium-hard to hard and abrasive rock formation, a wide taper angles is nomally used. Taper angles of 11° and 12° are normally used on modern drill rigs.

 

	Bit Specs
	38mm
	Skirt length 68mm
	11 degree + 8 buttons
Parabolic Carbide Button
Fast Penetration
Best suited to medium-hard to hard rock,and moderate abrasive formation
Combined wear resistance and high penetration rate
	Rock Uniaxial Compressive Strength 15,000-25,000 PSI Or 100-170 MPa

 

As a small hole drilling tools in a real jobsite, Acedrills' 38mm 11° taper button bit is good for drilling quarry and gold mine, at present, our products have got high performance in the jobsites of Australia, Indonesia, Chile. 

 

We promote this free shipping38mm 11° taper button drill bit is to meet the sample needs of  some customers. As a trial product, sometimes the high freight cost is prohibitive to many customers. Therefore, we hope that our company will bear the freight cost so that more customers can have access to our products.

 

 We assure that the quality of our product samples and real order is consisitant.

 

FAQ

1. How many times you can get free shipping order?

A: Basiclly, every client can only order one time, from the second, we'll charge shipping cost.

 

2. What if the quantity more than 10 pieces?

A: If the quantity is more than 10, please contact us to confirm the shipping cost of  excess quantity.

 

3. How long does the products would delivered after payment?

A: We'll send the goods immediately in our office time(9:30am -- 5:30pm), if not office time, the goods would be delivered in the second day.

 

4. Do you accept OEM order after sample order?

A: Yes, even if you have any requirement of the design, as long as you provide us the details (picture, video, drawing,specs),we'll make it and sign NDA with you.

PRODUCT SPECIFICATION

 

		Chisel Bits	Cross Bits	Button Bits
Taper Degree		7º	7º, 11º and 12º	7º, 11º and 12º
Bits Socket Diameter	mm	23	23	22
	inch	27/32	27/32	7/8
Bit Diameter	mm	26 ~ 43	28 ~ 51	28 ~ 45
	inch	1 1/32 ~ 1 45/64	1 7/64 ~ 2	1 7/64 ~ 1 25/32
Remark		There are horseshoe and oblique chipways designs; To drill media hard, hard and crack not grown formation with rock hardness not above f15 and in place where the compacting power of the rock drill doesn’t exceed 8Kg/MPa	To drill hard, very hard and crack grown formation	There are short skirt, average long skirt and enhanced long skirt; with hemi-spherical or parabolic inserts configurations; to drill all rock formations except very hard and abrasive formations

 

 

Notes: 1. Special sizes may be available upon request;   2. Choose big and high carbide bits, when work with high impact rock drills, to improve anti-percussive capability of the inserts; 3. Work with soft formation, use extreme hard carbide inserts bits to get high penetration; while work with hard formation, use sub-hard carbide inserts bits to avoid inserts breaking; work with erosive formation, use anti-resistance alloy carbide inserts; 4. The taper degree of the bits must be the same as the taper rods that it is planned to work with.

 

How to order?
Chisel Bit: Bit Diameter + Taper Degree + Socket Diameter + Head Design
Cross Bit: Bit Diameter + Taper Degree + Socket Diameter
Button Bit: Bit Diameter + Taper Degree + Socket Diameter + Skirt length + Insert Configurations