Hole Opener Reaming Bit Button Bit with 76-127mm


Made from high alloy steel and tungsten carbide as same grade as internationally well-known brand 
Apply "hot (thermal) -insertion" processing procedure to insert the buttons as same as internationally well-known brand 
Entire CNC processing procedure ensure the quality consistency 
Military grade requirements of heat-treatment guarantee durability 
Fast penetration rates, and streight and clean hole quality. Long life of drilling holes. 

A reaming bit functions to enlarge a borehole and it is designed with a drill portion and a reamer portion. The drill portion is formed by cutting edges at the end of a plurality of flutes, and the reamer portion includes a first relief formed on each flute surface disposed at a predetermined angle with respect to the flute surface to form a first reamer cutting edge. A second relief is formed contiguous with the first face on each reamer portion and is disposed at a second angle, less than the first angle with respect to the flute surface.

Description: Suitable for powerful percussive drills and top hammers with high speed drifter, , such as Atlas Copco 282 rocket boomer, Atlas Copco 352 rocket boomer jumbo, AtlasCopcoD7roc, FurukawaHCR 1200, Tamrock, and Ingesoll Rand ECM660, the products are widely used in bench and production drilling, extensional drilling, our products with comparative advantages of the more prominent cost-effective as the famous brand in the world, our products have been recognized as high-quality brand of rock-drilling tools made in China.

Premium designs and steel and premium tungsten carbide insert grade T6 supplied by Boart Long year, Offers industry-leading strength and penetration rates for more productivity Excellent straightness and hole clean quality, Get max. Drilling performance for rock drill.

Advantages:
Compared with the oversea brands, our advantages are bellowing:
A. Our products can match over 95% against the original products
B. Price are competitive against the famous brands and best quality against the small factory

About Us:
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's professional working experience.
4. Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.