R28 R32 T38 T45 Thread Button Bits 35-51mm for Top Hammer Blast Hole Drilling with Carburized Shank

Price Negotiable

Price: Negotiate

MOQ: 1 pcs

Delivery Time: Negotiable

Brand: ROSCHEN

Product Description

R28, R32, T38, T45 Thread Button Bits for Blast Hole Drilling

Product Overview

High-performance thread button bits designed for small hole top hammer drilling applications. These SR35-51mm bits feature 22x108 carburized shanks and are compatible with tapered rods for efficient blast hole drilling in quarries, mines, and construction projects.

Key Features

Available in multiple thread types: R28, R32, T38, T45
High-quality YK05 carbide tips for superior durability
Custom development available upon customer request
Multiple face designs: flat face, drop-center face, normal body, and retrac body
Compatible with various thread standards including Rope thread R22-R38 and T thread T38-ST68

Available Sizes

R32 series: 43mm, 45mm, 51mm, 64mm, 76mm diameters
T38 series: 64mm, 76mm, 89mm, 102mm diameters
T45 series: 76mm, 89mm, 102mm diameters
T51 series: 89mm, 102mm, 127mm diameters

Technical Specifications - T45 Thread Bits

Diameter (mm)	Gauge Buttons	Front Buttons	Flushing Gauge	Flushing Front	Body Type	Face Design	Part Number
66mm	8x10mm	4x10mm, 1x8mm	0	4	Retrack	Dropcenter	66-TH-RD
70mm	8x10mm	5x10mm	0	4	Retrack	Dropcenter	70-TH-RD
76mm	8x12mm	5x11mm	0	4	Normal	Dropcenter	76-TH-ND
76mm	8x12mm	5x11mm	0	4	Retrack	Dropcenter	76-TH-RD
76mm	8x12mm	5x11mm	0	4	Guidebit Retrack	Dropcenter	76-TH-RD-GR
89mm	8x12mm	6x11mm	1	4	Normal	Dropcenter	89-TH-ND
89mm	8x12mm	6x11mm	1	4	Retrack	Dropcenter	89-TH-RD