4mm Keyway Broach Set With Shim for Lathe Work, B Push Type HSS Tooling, Includes Metric Shim, Cut Range 0.297 to 1.688 Inches, Keyway Width 4.01 mm, Broach Size 6.45 x 171.5 mm, Heavy Duty High Speed Steel

Premium 4mm B Push Keyway Broach for Lathe Work
✔️ 4mm B Push Type Keyway Broach, width 4.01 mm, shim included

This 4 mm B Push Type Keyway Broach is designed for cutting precise keyways in shafts during lathe work, a common tool in machining shops for creating grooves for gears, pulleys, and shafts.

✅ Broach size: 6.45 x 171.5 mm (W x L) with keyway width b = 4.01 mm (0.158 in)
✅ Length of Cut: 19/64-1 11/16 in (7.54-42.83 mm)
✅ Material: HSS high speed steel for durability and smooth cutting
✅ Includes shim for alignment

💡 What is a keyway broach used for in lathe work?

In general, keyway broaches create precise grooves on shafts to accept keys and transfer torque in assemblies. This handy tool is common for gear, pulley, and shaft work in machining shops.

• handy for cutting accurate, straight keyways on shafts
• works with high speed steel tooling for durable, clean cuts
• shim included helps alignment and depth control

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