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Specification:
Module number: 1.25.
Material: HSS
Inner hole: 22 mm.
Pressure angle: 20 degrees.
Quantity: 1 piece.

Each gear is different:

1#: 12-13 gears.
2#: 14-16 gears.
3 #: 17-20 gears.
4#: 21-25 gear.
5#: 26-34 gears.
6#: 34-54 gear.
7#: 55-134 gear.
8 #: ?135 gears.

Feature:
M1.25 HSS Gear Router Bit
Special cutting tools for milling gears.
Size and proportions for a good cutting area and sufficient rigidity.
Tooth shape in straight shape to match the involute shape.
Well suited for use in a variety of ferrous and non-ferrous materials.

Box contents:
1 x HSS gear cutter