Williams Super Combo Wrench Set, 15 pcs.

(15) Super Combo(R) Wrench Set: (1) Length 5-5/16" of Size 7mm, (1) Length 5-25/32" of Size 8mm, (1) Length 6-9/32" of Size 9mm, (1) Length 6-3/4" of Size 10mm, (1) Length 7-1/4" of Size 11mm, (1) Length 7-11/16" of Size 12mm, (1) Length 8-1/32" of Size 13mm, (1) Length 8-5/8" of Size 14mm, (1) Length 9-3/32" of Size 15mm, (1) Length 9-1/2" of Size 16mm, (1) Length 10-1/16" of Size 17mm, (1) Length 10-17/32" of Size 18mm, (1) Length 11-1/32" of Size 19mm, (1) Length 11-1/2" of Size 20mm, (1) Length 11-25/32" of Size 21mm

SUPERCOMBO(R) Open End has Specially Designed Grooves That Direct Wrench Force Away from Fastener Corners, SUPERTORQUE Box Opening Design Allows Application of Higher Torque Without Rounding or Deforming Hex Fastener Points, Meets or Exceeds Aerospace Specification AS 954 for 12 Point Fasteners to Provide Accurate Torque/Tension Relationship for Precision Application, May be Used on All Common Hex (6 point) Fasteners With Considerable Advantage Over Conventional Box End Wrenches to Increase Both Hand Tool Flexibility and Economy, Box and Open End Openings are Identical