Dormer Pramet A100 12.70 mm HSS ST STRAIGHT SHANK JOBBER DRILL DIN 338 Inner Cartridge The JBO Thread Ring Gauge

The JBO Thread Ring Gauge (GO) for UNEF right-hand threads is a precision go gauge designed to verify external thread diameters quickly and reliably across manufacturing

helping you maintain edge integrity through extended drilling sessions

Standards: DIN 206-B compliant geometry

it provides consistent results across production runs

Dormer Pramet A100 12.70 mm HSS ST STRAIGHT SHANK JOBBER DRILL DIN 338 Inner Cartridge The JBO Thread Ring GaugeThe Dormer Pramet A100 12. 70 mm HSS straight shank jobber drill (DIN 338) is a reliable metalworking drill designed for a variety of handheld and machine applications. With a 12. 70 mm diameter and DIN 338 compliance, its a versatile choice for everyday drilling tasks across steel, aluminium, and stainless steel. 118 conventional point: Delivers a strong starting bite and is easy to re sharpen, helping holes begin cleanly and extend the tools life.