Gt60 Retrac Thread Button Bit for Drilling Rocks and Stones

Model NO.: GT60


Certification: AISI


Type: Twist Drill Bit


Use: Mining and Quarrying


Loading Port: Xiamen


Thread: Gt60


Transport Package: Wooden Box


Origin: China




Customized: Customized


Length: Taper-length


Material: Tungsten Carbide


MOQ: 1 PC


Color: Blue


Trademark: BESTLINK


Specification: D=128mm


HS Code: 82071990


GT60 Common and Retrac Button Bits

Type	Dia(mm)	Front buttons	Guage buttons	Side Flu.holes	Front Flu holes	Weight(kg)
Normal Body	92	13x4,13x1	13x8	4	-	5.3
	96	13x4,13x1	14x8	4	-	5.6
	102	11x9	13x9	3	-	6
	115	12x10	14x9	3	-	6.8
	127	13x10	14x9	3	-	7.5
	140	14x10	16x9	3	-	9
	152	14x12	16x9	3	-	10.6
Retrac Body	92	12x9	12x9	2	-	5.4
	96	12x9	12x9	2	-	6.3
	102	12x10	13x9	2	-	7.3
	115	12x10	14x9	3	-	9.8
	118	13x6	16x9	3		10
	127	13x10	14x9	3	-	12
	140	14x10	16x9	3	-	14.0
	152	14x12	16x9	3	-	16

Bit face shape selection:

1. Drop Center Bit

For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.

2. Concave Face

The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.

3. Convex Face

For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.

4. Double Gauge Face

This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.

5. Flat Face Bit

This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.





Carbide button shape selection:

1. Domed/Round Button

2. Parabolic/Semi-Ballistic Buttons

3. Ballistic Button

4. Sharp Button

5. Flat Button

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