Bright finish helps prevent built-up-edge when tapping sticky materials Dormer E2823/8 Series E282 HSS-E-PM Straight Flute Machine Tap BSP(G) with Bright Finish, DIN Standard, 3/8-19 Thread, 16.66 mm Cutting Diameter, 100 mm Length HSS Taps Dormer E500M6NO8 M Machine Tap Straight Flute, Set Of 3, M6 X 1.00 Mm Metric Thread Tap Set Dormer E500 straight flute taps are the only type of taps that can be used by hand, but they may also be used in a machine if required. Extremely versatile, can tap through or blind holes in most materials Straight flute designed for threading both through or blind holes E500 M6 x 1mm hand tap set of 3, HSS construction for accurate metric coarse threading in metalworking tasks. 5977173 | Tools High Speed Steel (HSS) provides good hot hardness when tapping