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Top Hammer Drilling Tools for Bench Drilling

Bit Diameter: 89mm-102mm
Button bit design: Flat face, drop center, normal and retrac body.
Tungsten carbide (Buttons): Spherical, ballistic and conical.
Applications: Bench, production

We have different designs for various rock formations, and a longer service life to decrease use costs for users.

Button bit	Dimensions D		Flushing hole (mm)		Buttons (mm)		Angle	Class	Part no.
Button bit	mm	in	Front No size	Gauge No size	Front.,No size	Gauge.,No size	Angle	Class	Part no.
	89 102	3 1/2 4	4×10 4×11	- -	6×12 6×12	8×14 8×14	35° 35°	M M	3089ST5814D 30102ST5814D
	89 102	3 1/2 4	2×14 2×15	- -	6×12 6×13	8×14 8×14	35° 35°	H H	3089ST5814 30102ST5814
	89 102	3 1/2 4	2×11 2×12	2×9 2×9	6×12 6×12	8×14 8×14	35° 35°	H H	3089ST58F14R 30102ST58F14R
	89 102	3 1/2 4	4×10 4×11	- -	6×12 6×12	8×14 8×14	35° 35°	M M	3089ST5814DR 30102ST5814DR