4" 5" Spherical Retractable Drill Bit St68 102mm 115mm 127mm

 

4" 5" Spherical Retractable Drill Bit ST68 102mm 115mm 127mm

 

Description

This type of bit is well known for its wear resistance on soft to medium-hard rock formations (between 55 Mpa to 165 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture. Recommended for eliminating hole deviation.

• Widely used drifting and tunneling
• 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

Color: Green,Blue or Based on Customer requirements

Material: Tungsten carbide and high strength alloy steel

Processing: CNC milling and proprietary heat treatment process

Type: ST68 Retrac Button Bit Spherical Buttons

 
Applications

• Underground mining
• Tunneling

 
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

 
specification

 

Part Number	Bit Diameter (mm)	Bit Diameter (inch)	Front Buttons  (No. x mm)	Gauge Buttons  (No. x mm)
4148301024	102	4	4x12, 4x12	10x12
4148301025	102	4	4x14, 2x12	8x14
4148301026	110	4 1/3	6x14	8x16
4148301027	115	4 1/2	6x14	8x16
4148301028	127	5	8x14	9x16
4148301029	140	5 1/2	9x14	9x16

 

Product Code and Brief Description	Angle	Front Flushing  Holes	Side Flushing  Holes	Weight  (kg)
R18102-ST68-S, ST68 Retrac Button Bit, Spherical Buttons	35°	4	-	9.3
R14102-ST68-S, ST68 Retrac Button Bit, Spherical Buttons	35°	4	-	9.3
R14110-ST68-S, ST68 Retrac Button Bit, Spherical Buttons	35°	2	-	10
R14115-ST68-S, ST68 Retrac Button Bit, Spherical Buttons	35°	2	-	10
R17127-ST68-S, ST68 Retrac Button Bit, Spherical Buttons	35°	3	-	15
R18140-ST68-S, ST68 Retrac Button Bit, Spherical Buttons	35°	3	-	17.8