4mm B1 Push Type Keyway Broach HSS Keyway Cutting Tool For CNC And DIY Machining, Metric Size 6.45x171.5mm, Pro Grade Broach For Shaft Grooves, Heavy Duty Metalworking Tool
✔️ 1pc HSS 4mm keyway broach, 6.45x171.5 mm, shim included
This 1pc, 4mm B1 push-type keyway broach is designed for CNC milling and DIY metalworking, cutting precise 4mm keyways on shafts. Metric size 6.45 x 171.5 mm; shim included for setup accuracy. Color: One Color.
✅ 4mm broach size, b=4.01 mm
✅ Style B1 push-type
✅ Material HSS (High-Speed Steel)
✅ Length of Cut: 7.54-176.25 mm (0.2969-6.9375 in)
✅ Broach dimensions: 6.45 x 171.5 mm (0.254 x 6.76 in)
✅ Correction height: 10.8 mm
✅ Leading height: 9.66 mm
✅ Package: 1pc broach with shim
💡 What is a keyway broach used for in shaft machining?
- Creating precise keyways on shafts for gears, pulleys, or hubs.
- Handy for CNC milling or manual machining to ensure proper torque transfer.
- Push-type design like B1 enables controlled depth and width in one pass.