Different rock hardness drilling button bit ST58 with Dia 102mm , benching and long hole drilling
 

Describtion

This type of bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture. Recommended for eliminating hole deviation. Used in benching and long hole drilling

.• Bit face design is ideal for soft to medium rock formations
• With Retrac Wings to help guide the bit in and out of the hole
• Effective in straight hole drilling

Notes:

1. Special sizes may be available upon request.

2. How to order?

Button Bit:

Diameter + Thread + Skirt Shape + Face Design + Insert

Configuration

Cross & X-Type Bit:

Diameter + Thread + Skirt Shape

Button bit and Insert types
Spherical Button Characteristics:
1.Universal button
2.Good wear resistance
3.Best suited for hard ground
4.27000-48000PSI(180 to 320Mpa)
5.Suited for abrasive to very abrasive drilling conditions

Ballistic Button Characteristics:
1.Fast Penetration
2.Best suited for soft rock
3.10000-20000PSI(70 to 140Mpa)
4.Suited for non-abrasive drilling conditions

Applications of rock drilling tools

• Underground mining
• Tunneling,quarrying

Competitive Advantage

• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment

2018 Bauma exhibition in shanghai 

Tag: Spherical drill bit,mining drill bits,T45