Stanley STA50120-QZ Metal Drill Bit HSS-R 13mm Drill Diameter 151mm Total Length 101mm Spiral Length DIN338 Suitable for Metals Pack of 1 Black/Yellow - - Amazon.com
kwb 4 mm Metal Drill HSS-E 248640 (Industrial Quality, Extreme Heat Resistance, for Difficult-to-Machine Materials, Precision-Ground, DIN 338) - Jobber Drill Bits - Amazon.com
KWB, diameter metal drill HSS TiN, high-speed steel twist drill, industrial grade, precision ground, high cutting speed, DIN 338, 427140 - - Amazon.com