ａタップ、cc-sus-sftとの違い | オーエスジー

Difference from A Tap and CC-SUS-SFT

Both use variable lead grooves, but unlike CC-SUS, which is mainly a blade type for SUS, A Tap is a versatile blade type Tap that can be adapted to SUS and can handle mild steel up to ~30HRC.

Reference: A Tap Series