Dormer Pramet 96154 MF Machine Tap Straight Flute, Pack of 1

Zoro Tools

Series E513 HSS Straight Flute Plug Tap - Metric Fine Hand or machine taps for use on a wide variety of materials Metric Fine HSS Bright finish Straight flute for through or blind holes 1.5xD Manufactured to ISO 529 Sizes M3 to M50 Plug tap 1-2 pitch chamfer length

Amazon

High Speed Steel (HSS) provides good hot hardness when tapping Straight flute designed for threading both through or blind holes Bright finish helps prevent built-up-edge when tapping sticky materials For use on machines or hand held applications