Prodrill Reaming Button Bits and Pilots Adapters for Quarrying Reamer Bits

• Customized: Customized
• Length: Taper-length
• Type: Reaming Bit
• Material: Tungsten Carbide
• Usage: Hole Opener
• Name: Taper Reaming Bit
• Model NO.: pilot bit
• Tungsten Carbide: Yk05/T6/Kd10h/Yk20
• MOQ: 5PCS
• Color: Customed
• Degree: 7, 11 , 12 ,
• Thread Type: R25, R28, R32, R35, R38, T38, T45, T51
• Polit Adapter Head Diameter: 26mm to 40 mm
• Reaming Button Bit Diameter: 64mm to 127mm
• Rock Formation: Hard / Medium Hard / Soft Rock Formation
• Transport Package: Wooden Box
• Specification: R25-32mm-64mm
• Trademark: PRODRILL
• Origin: China
• HS Code: 82071990
• Production Capacity: 1000PCS/Month

Product Description

Prodrill Reaming Button Bits and Pilots Adapters for Quarrying Reamer Bits
 

Rock drilling tools manufacturer ProDrill's rock drill bits: Reaming tools 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.

Products Name	Prodrill reaming button bits and pilots adapters for quarrying
Description	Advanced engineering, precision manufacturing and high-grade materials ensures the reliable quality of our reamer bit.
Thread type	R25, R28, R32
Polit adapter head diameter	26mm to 40 mm
Reaming button bit diameter	64mm to 127mm

Specification:

 

Pilot bits  6°, 11°, 12°
Diameter		Length	Thread	Taper degree	Weight
mm	inch	mm			Kg
26	11/32	300	R25	6°	2.31
26	11/32	300	R28	6°	2.35
26	11/32	300	R32	6°	2.48
35	13/8	250	R25	12°	1.58
38	11/2	250	R28	12°	2.12
40	19/32	250	R32	12°	2.24

 

Reamer button bits  6°,11°,12°
Diameter		T.C  buttons		Angle	Taper degree	Weight
mm	inch	Gauge x mm	Front x mm	Gauge		Kg
64	21/2	8x10	2x9	35°	6°	0.92
76	3	8x11	2x11	35°	6°,12°	1.41
89	31/2	8x11	4x11	35°	6°,12°	1.82
102	4	8x13	4x13	35°	6°,12°	2.15

7/11/12 dgree Taper reaming bit with polit adapter 64mm-32mm

Pilot adapter,  Reamer ring. 

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 pilot adapter 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. 

Assembly 

Reaming ring of reaming tools, 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.