本文へスキップします。

【全:英】代理店
【全:英】ログインボタン
【全:英】サイトマップ
【全:英】検索
H1

Number of Tap flutes

【英】困ったときの知恵袋詳細
Cutting Taps Metric Threads Specification of tools
We have received an order for HT P3 M12X1.75 5P. The YAMAWA catalog shows that this tap size is available with 3 or 4 flute configuration. What is the purpose of having different amount of flutes?
A 4-fluted tap emphasizes the wear resistance of the cutting edge, where as a 3-fluted tap focuses on chip containment. The actual choice will be based on what kind of work material and tapping conditions are being used.
For more information, please see the explanation below.
Nowadays with modern machining, Hand Taps are mostly used to repair and clean existing internal threads, or to machine smaller lots of parts. In these type of cases, there may not be much difference between 3 and 4 flute taps.

Document