l The bit holder clamps on the surface, reducing the clearance between the bit and holder to a minimum. This is especially important during drilling (concentric running accuracy).
Universal use due to the special holding mechanism only one bit holder for The most different bits
1/4 英寸钻头夹持器
速换夹持器，经过优化，最适合使用 1/4 英寸六角驱动的批头钻和批头（形状 C 6.3、形状 E 6.3 和双批头）。
