![4.10 mm Smoothing Broach](http://perrinwatchparts.com/cdn/shop/files/15-0420-300_300x300.jpg?v=1687464626)
4.10 mm Smoothing Broach 4.10 mm Smoothing Broach is a round tapered finishing broach (reamer) for finishing a hole after using a cutting broach. The maximum diameter of this finishing broach is 4.10 mm, with the working length of the broach being 100 mm. This is a Bergeon Swiss quality product, Stubs size 20.