Acrow BSD31 – BSD Fine Boring Head (Ø32–42 mm Range) Somta Series 545 – No. 12 UNC HSS Gun Nose Tap (Standard) The 100 mm gauge length

The 100 mm gauge length offers a versatile setup ideal for a wide range of milling

Enhance your threading precision with the SOMTA HSS Metric Tap M10 x 1

Insize 8-9" Inside Micrometer

Provides excellent wear resistance and cutting efficiency

Acrow BSD31 – BSD Fine Boring Head (Ø32–42 mm Range) Somta Series 545 – No. 12 UNC HSS Gun Nose Tap (Standard) The 100 mm gauge lengthAcrow BSD31 BSD Fine Boring Head (3242 mm Range) The Acrow BSD31 is a precision engineered BSD Fine Boring Head for use in medium to large diameter boring setups. Designed for boring ranges between 3242 mm, it delivers stable and precise performance through its hardened alloy steel construction and precision ground geometry. This extension increases boring flexibility while preserving accuracy and repeatability under heavy cutting conditions.