Quick view Add to Wishlist Jacobs #9 Drill Chuck Key: K4, 3/8" Pilot Dia Drill Chuck Key: K4, 3/8" Pilot Dia For Use with 16N, 18N, 36, 36B, 37KD, 37PD, 59B Drill Chucks MSRP: $13.33 Add to Cart The item has been added Compare