Sturtevant Richmont Square Drive Ratchet Interchangeable Head for Torque Wrench with 1/8 Hole, 1/4 in - SR 853619 1/4" Nut & Bolt Twisters 12mm Opening:

12mm Opening:

(1) 3-1/8 in T

this universal Whitworth socket set is an essential addition to any professional toolbox

(6) 3-1/8 in T

A Size: 2-5/64 in (Refer Drawing Image)

Sturtevant Richmont Square Drive Ratchet Interchangeable Head for Torque Wrench with 1/8 Hole, 1/4 in - SR 853619 1/4" Nut & Bolt Twisters 12mm Opening:Sturtevant Richmont Square Drive Ratchet Interchangeable Head for Torque Wrench with 1 8 Hole, 1 4 in SR 853619 Engineered for professional performance and durability, this square drive ratchet interchangeable head for torque wrench offers reliable operation in demanding applications. Designed for precision and long lasting quality in professional settings. Features: One piece, cast, proprietary steel 1 7 16" Common Centerline 36. 5 mm Common