12° Tapered Drilling Tools

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Bit Diameter: 30-45mm
Size: Hex. 22mm, 25mm
Taper degree: 4°46', 6°, 7°, 11°, 12°
Applications: Quarrying, small hole drilling

Our tapered bits include button, cross and chisel designs.
Longer service life and lower drilling costs.
11°, 12° tapered button bit with hot zinc-coating

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.
H22	32 33 35 36 38 40	1 1/4 1 5/16 1 3/8 1 13/32 1 1/2 1 9/16	2×4 2×4 2×4 2×4.5 2×4.5 2×5		1×4 1×4 1×5 1×5 1×5 1×5	2×7 2×7 2×7 2×7 2×8 2×8	5×7 5×7 5×7 5×8 5×8 5×8	40° 40° 40° 40° 40° 40°	- - - - - -	30322207-12 30332207-12 30352207-12 30362207-12 30382207-12 30402207-12
H22	32 34 38 45	1 1/4 1 11/32 1 1/2 1 3/4	2×4.5 2×4.5 2×5 2×5.5		1×4.5 1×4.5 1×5 2×4	2×7 2×7 2×8 2×8	6×7 6×7 6×8 6×9	15°,35° 15°,35° 15°,35° 15°,35°	- - - -	30322208-12 30342208-12 30382208-12 30452208-12
H25	36 38 41 43	1 13/32 1 1/2 1 5/8 1 11/16	2×4.5 2×4.5 2×5 2×5		1×5 1×5 1×5 1×5	2×7 2×8 2×7 2×8	5×8 5×8 5×9 5×9	35° 35° 35° 35°	- - - -	30362507-12 30382507-12 30412507-12 30432507-12
Chisel bit
H22	30 32 34 36 38 40	1 3/16 1 1/4 1 11/32 1 27/64 1 1/2 1 37/64	- - - - - -	2×5 2×5 2×5 2×5 2×5.5 2×5.5		- - - - - -	- - - - - -	- - - - - -	- - - - - -	313022-12 313222-12 313422-12 313622-12 313822-12 314022-12
H25	30 32 34 36 38 40	1 3/16 1 1/4 1 11/32 1 27/64 1 1/2 1 37/64	- - - - - -	2×5 2×5 2×5 2×5 2×5.5 2×5.5		- - - - - -	- - - - - -	- - - - -	- - - - - -	313025-12 313225-12 313425-12 313625-12 313825-12 314025-12

Drill rod	Dimensions L			Dimensions D		Part no
Drill rod	mm	ft	in	mm	in	Part no
Hex shank22*108 mm	610 1220 1830 2000 2440 30503200 3660	2 4 6 6 8 10 10 12	- - - 7 - - 6 -	22 22 22 22 22 22 22 22	7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8	10220612 10221212 10221812 10222212 10222412 10222302 1022321210223612