HexTap OS, Multi-Drive, HSS-G, M 20 x 1.5 

to be used with oil drain screw threads - Multi-Drive with hexagon hole for ratchet or hexagon keys, external hexagon for open-end wrench or ratchet - non abrasive material up to 900 N/mm² - unalloyed and low alloyed steel - tools are available in kits and workshop kits, too Material: HSS-G