[Gear Cutter Specifications]Featuring a 14-1/2 degree pressure angle and a robust inner bore of 22mm, these gear cutters boast an outer diameter of 55mm. Designed for precision, the cutters ensure smooth gear engagement and high transmission efficiency, enhancing your machining experience. [R8 Mill Cutter Holder Details]This holder is tailored for a 7/16" drawbar thread and is compatible with cutters or saws with a 22mm diameter. Its design is optimized for stability and precision, making it an essential tool for any serious machinist or hobbyist. [Comprehensive Package Contents]Our set includes 8 pieces of No.1-8 involute gear cutters and a 22mm R8 Milling Cutter Holder Set. This combination provides a versatile range of tools for various machining operations, ensuring you have the right tool for every task. [High Precision Tooth Profile]Crafted using advanced precision grinding technology, each gear cutter is meticulously designed to minimize tooth profile errors. This precision ensures seamless gear meshing and optimizes power transmission, making your machining processes more efficient. [Durable and Stable Tool Structure]The cutter holder features a thickened solid structure, capable of enduring high-speed cutting operations without significant vibration. This design enhances the overall stability and durability of the tool, providing reliable performance under rigorous use. Color: As Shown Material: 42rm Package Contents: 1*CNC Cutting Tools set