Drill set in DIAL-A-TOOL container consisting out of 20 jobber length drills with straight shank. This Dormer 20 piece Drill Bit Set is designed for use with Miniature Drills. It features a maximum size of 1mm and a minimum size of 0.3mm. The set contents include drill bits with sizes: 0.3; 0.35; 0.38; 0.4; 0.45; 0.5; 0.52; 0.55; 0.58; 0.6; 0.65; 0.7; 0.75; 0.78; 0.8; 0.82; 0.85; 0.9; 0.95; 1 mm. The material is High Speed Steel (HSS), which provides good hot hardness. It has a 118-degree conventional point that is easy to re-grind. The steam oxide finish reduces built-up-edge and aids lubricity. The patented Silver ring provides clear diameter marking. These drill bits are suitable for use on machines or hand-held applications. The MPN for this set is A191 31M.