4mm B1 Push Type Keyway Broach HSS Cutting Tool For CNC Milling Metric Size Keyway Cutter Durable And Efficient For Precise Slots Kickin Precision DIY Friendly Pro Grade

Precision 4mm B1 Keyway Broach HSS for CNC Milling Slots
✔️ 4mm size B1 style 6.45 by 171.5 mm with shim included

This push type keyway broach serves as a handy HSS cutting tool that creates accurate slots in metal components during CNC work and manual setups.

✅ Broach dimensions 6.45 by 171.5 mm with 4.01 mm keyway width
✅ Correction height 10.8 mm and leading height 9.66 mm
✅ Length of cut range 19/64 to 111/16 with one shim
✅ Single piece metric tool for precise CNC keyway jobs

💡 What is a keyway broach used for in machining? A keyway broach cuts internal slots that hold keys between shafts and gears in mechanical assemblies. - Handles metric sizes for consistent CNC milling results - Push style operation pairs with standard arbor presses - HSS material stays sharp across many cutting cycles - Delivers clean slots without extra finishing steps

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