R32 Reaming Rock Drill Button Bits with Taper 6/12 Degree

• Customized: Customized
• Length: Stub-length
• Type: Twist Drill Bit
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: R32
• Material: Cobalt Steel Alloys
• Usage: Well Drilling, Metal Drilling, Masonry Drilling
• Place of Origin: Hubei ,China
• Condition: New
• Brand: Prodrill
• Model Type: R32 Reaming Bits
• Machine Type: Drilling Tool
• Processing Type: Forging
• Transport Package: Cartons
• Specification: SGS, CE
• Trademark: Prodrill
• Origin: China
• HS Code: 82071990
• Production Capacity: 1000pec/Months
• Package Size: 0.50cm * 0.50cm * 100.00cm
• Package Gross Weight: 5.000kg

Product Description

Reaming bits
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 
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.