Generic Triple Square Spline Bit Socket Set M4-18 Convenient
【Product List】: 1 Triple Square Spline Bit Socket Set, 19cmx13cmx4cm. 【Batch bit model】: The batch bit model is M4-18, and the square head specifications include 1/2" (12.6mm), 3/8" (10mm) and 1/4" (6.35mm).