Name: 89mm Diameter T51 Thread Retrac Button Bits – Tungsten Carbide Rock Drill Bit for Mining & Tunneling
Brand: KSQ Technologies (Beijing) Co. Ltd
SKU: 89mm T51
Price: 75 USD
Availability: InStock

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89mm Diameter T51 Thread Retrac Button Bits – Tungsten Carbide Rock Drill Bit for Mining & Tunneling

Product Details:

Place of Origin:	CHINA
Brand Name:	MIROC
Certification:	ISO
Model Number:	89mm T51

Payment & Shipping Terms:

Minimum Order Quantity:	1
Price:	$75
Packaging Details:	Wooden cases
Delivery Time:	20-30
Payment Terms:	L/C,D/A,D/P,T/T,Western Union
Supply Ability:	3000

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Detailed Product Description

Model NO.:	Rock Drill Bits	Surface Treatment:	Spray-Paint
Manufacturing Process:	Stamping	Thread:	R32,T38,R38,T45,T51,Gt60
Application:	Quarrying, Construction Project, Mining	Condition:	New
Highlight:	89mm T51 thread retrac button bits , tungsten carbide rock drill bit , mining tunneling drill bits

89mm Diameter T51 Thread Retrac Button Bits

Tungsten carbide rock drill bit engineered for mining and tunneling applications in medium-hard to hard abrasive rock formations.

Product Overview

The Thread Button Bit is engineered for superior performance in medium-hard to hard abrasive rock formations with compressive strengths ranging from 200 MPa to 260 MPa. Featuring spherical tungsten carbide inserts, this bit delivers excellent resistance to carbide fracture, ensuring longer service life and reduced downtime in demanding drilling environments.

Key Applications

Underground mining and surface mining
Long hole drilling
Bench mining and production mining
Rock types: Granite, Basalt, Limestone, and other hard formations

Performance Features

Feature	Benefit
Spherical tungsten carbide inserts	Excellent resistance to insert fracture under high impact
High-grade carbide material	Maintains cutting efficiency in hard, abrasive rock
Optimized for 200-260 MPa rock	Matches compressive strength of medium-hard to hard formations
High wear resistance	Longer bit life, fewer bit changes, lower operating cost

Technical Specifications

T51 Retrac Button Bit - 89mm (3.5 inch) Diameter

Button Type	Diameter	Buttons and Size (mm)	Angle	Flushing Hole	Weight (kg)	Part Number
Spherical	89mm (3.5")	4x13	40°	2 Front	5.3	4148300916
	89mm (3.5")	5x13	35°	2 Front, 1 Side	5.3	4148300917
	89mm (3.5")	3x11, 2x11	35°	4 Front	5.3	4148300918
	89mm (3.5")	4x11, 1x11	35°	4 Front	5.3	4148300919
	89mm (3.5")	4x13, 1x13	35°	4 Front	5.3	4148300920
Ballistic	89mm (3.5")	5x13	35°	2 Front, 1 Side	5.3	4148300934
	89mm (3.5")	3x11, 2x11	35°	4 Front	5.3	4148300935
	89mm (3.5")	4x11, 1x11	35°	4 Front	5.3	4148300936
	89mm (3.5")	4x13, 1x13	35°	4 Front	5.3	4148300937