Somta Series 521 – Hss Bsw Tap 1" Bottom (Whitworth) Somta Series 581 – HSS NPS 1/8″ Bottom Tap (Straight Flute Profile: Partial Form Insize GO Thread Ring Gauge M18X1.5 Series 4129-18R
Yard notes & kiln story
Description
Somta Series 521 – Hss Bsw Tap 1" Bottom (Whitworth) Somta Series 581 – HSS NPS 1 8″ Bottom Tap (Straight Flute Profile: Partial Form Insize GO Thread Ring Gauge M18X1.5 Series 4129 18R Profile: Partial Form Multi Material Use – Suitable for drilling steel Key Features & Benefits Whitworth thread profile for compatibility with British standard fittings