通常のsus用タップではどれくらいの有効ねじ長さを加工できる？どれくらいから深穴用が必要？ | オーエスジー

For ordinary SUS Tap , both spiral fluted tap and spiral pointed tap are for depths up to 1.5~2 times the thread diameter.

If it is longer than that, we recommend the specification for deep holes.

Reference: Deep hole for SUS Tap

　　　　　　Deep hole Tap for SUS (for deep hole)

(FAQID:346)