Countersink Case #6,8,9,12,18,19

This is a case where the counter sink is lost

The counter sink of the size below enters.
#6,#8,#9,#12,#16,#19
This is the case for the product as shown in the URL.

https://www.amazon.co.jp/gp/product/B07D1MTC85/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

カウンターシンク用のケースです。