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Using the JBO NoGo gauge in your QA routine speeds inspections
Use appropriate drilling fluid or light lubrication to reduce wear and improve surface finish
" that refers to blanks ready to be manufactured into your reamer
Ideal for small-diameter hole finishing where reliability and consistent results matter
The JBO Thread Ring Gauge (GO) - Metric Fine - Right Hand - 6h - M78 x 1
Dormer Pramet A120 21.00 mm HSS ST STRAIGHT SHANK STUB DRILL DIN 1897 Hand Deburring Using the JBO NoGo gaugeDormer Pramet A120 21. 00 mm HSS straight shank stub drill (DIN 1897) is a compact, reliable drilling tool designed for metalworking professionals and serious hobbyists. With a 21 mm diameter and a straight shank, it offers rigid, precise drilling suitable for both handheld use and machine setups. Featuring an 118 degree split point, this drill bit starts holes cleanly and centers itself, reducing wandering and the effort required to begin cutting.
