19/10/2026
๐๐๐๐๐ ๐๐๐๐๐๐ ๐๐๐๐๐๐๐๐๐ ๐๐๐๐๐ - Midway Tools Educational Series
Ever wondered what the letters A, B, C, D, E, F, G, N, P and T mean when choosing a lathe cutting insert? ๐ค
They indicate the ๐ข๐ง๐ฌ๐๐ซ๐ญ ๐๐ฅ๐๐๐ซ๐๐ง๐๐ ๐๐ง๐ ๐ฅ๐ โ an important factor when selecting the right insert for your machining application.
๐ ๐๐๐ซ๐'๐ฌ ๐ ๐ช๐ฎ๐ข๐๐ค ๐ ๐ฎ๐ข๐๐ ๐ญ๐จ ๐ญ๐ก๐ ๐๐๐ฌ๐ข๐ ๐ง๐๐ญ๐ข๐จ๐ง๐ฌ:
๐น A โ 3ยฐ clearance angle
๐น B โ 5ยฐ clearance angle
๐น C โ 7ยฐ clearance angle
๐น D โ 15ยฐ clearance angle
๐น E โ 20ยฐ clearance angle
๐น F โ 25ยฐ clearance angle
๐น G โ 30ยฐ clearance angle
๐น N โ 0ยฐ clearance angle (negative insert)
๐น P โ 11ยฐ clearance angle
๐น T โ 10ยฐ clearance angle
๐ก Why does clearance angle matter?
The clearance angle helps determine how the insert sits against the workpiece and influences tool clearance, cutting-edge strength and the suitability of an insert for a particular turning operation.
Choosing the correct insert depends on your tool holder, workpiece material and machining requirements.
๐ Know your inserts. Understand the angles. Machine with confidence!
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