KTC 12.7 sq. Extension bar 50 mm BE4-050 1 piece

Catalog number: BE4-050 Features: ●Improved precision and strength in all respects, including diagonal dimensional precision, drive square insertion stability, and increased cross-sectional area. ●Uses a power fit shape that prevents stress concentration through surface contact. ●Slim design in the center of the shaft makes quick rotation easy (square side). ●Uses a power fit shape on the drive square side. ●Excellent torque transmission. Specifications: ●Drive square (mm): 12.7 ●Total length (mm): 50 ●Drive square concave (mm): 12.7 ●Drive square convex (mm): 12.7 Material/Finish: ●Special tool steel Caution: ●Do not connect more than two pieces.