Ko-ken 5/16H bit holder 4138 1 piece

Catalog number: 4138 Features: ● A bit holder that drives general-purpose bits with a hexagonal shaft using a ratchet handle, etc. Applications: ● For bits with a shank diameter of 8 mm. Specifications: ● Drive size (mm): 12.7 ● Overall length (mm): 38 ● Applicable size (mm): 5/16 8 mm ● Applicable bits: 5/16 (8 mm) H bit ● Compatible bits: 5/16 (8 mm) H bit Material/Finish: ● Chromium molybdenum steel (SCM435)