7° Tapered Drilling Tools

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Bit Diameter: 30-43mm
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 34 36 38 41	1 1/4 1 11/32 1 13/32 1 1/2 1 5/8	2×4 2×4 2×4.5 2×5 2×5	1×4 1×4 1×4.5 1×4.5 1×5	2×7 2×7 2×7 2×7 2×7	5×7 5×7 5×8 5×8 5×9	40° 40° 40° 40° 40°	- - - - -	30322207-07 30342207-07 30362207-07 30382207-07 30412207-07
H22	34 36 38 41	1 11/32 1 13/32 1 1/2 1 5/8	2×4 2×4.5 2×5 2×5	1×4 1×4.5 1×4.5 1×5	2×7 2×7 2×7 2×8	6×7 6×7 6×8 6×8	35° 35° 35° 35°	- - - -	30342208-07 30362208-07 30382208-07 30412208-07
H25	36 38 41 43	1 13/32 1 1/2 1 5/8 1 11/16	2×4.5 2×5 2×5 2×5	1×4.5 1×4.5 1×5 1×5	2×7 2×8 2×7 2×8	5×8 5×8 5×9 5×9	35° 35° 35° 35°	- - - -	30362507-07 30382507-07 30412507-07 30432507-07
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	- - - - - -	- - - - - -	- - - - - -	- - - - - -	313022-07 313222-07 313422-07 313622-07 313822-07 314022-07
H25	36 38 41 43	1 13/32 1 1/2 1 5/8 1 11/16	- - - -	2×5 2×5.5 2×5.5 2×5.5	- - - -	- - - -	- - - -	- - - -	313625-07 313825-07 314125-07 314325-07

Drill rod	Dimensions L			Dimensions D		Part no
Drill rod	mm	ft	in	mm	in	Part no
Hex shank 22*108 mm	600 800 1200 1600 2400 3200 4000	2 2 3 5 7 10 13	- 7 11 - - 6 -	22 22 22 22 22 22 22	7/8 7/8 7/8 7/8 7/8 7/8 7/8	10220607 10220807 10221207 10221607 10222407 10223207 10224007
Hex shank 25*108 mm	800 1600 2400 3200 4000	- 4 6 8 10	- - - - -	25 25 25 25 25	1 1 1 1 1	10250807 10251607 10252407 10253207 10254007