美国开那迈他尔公司开发的KM型工具系统中,刀柄与刀尖(或刀柄─—接杆──刀夹)之间采用了图1所示的钢珠锁紧式连接机构。刀柄插入刀夹时,推杆处于后部(靠右),钢珠落入套内。用扳手旋紧锁紧螺钉,使推杆前移,由于推杆上斜面的作用,钢珠便落入刀柄的斜孔中,在钢珠的作用下,刀柄开 In the United States, a KM-type tool system developed by Maitrell Company was adopted. The ball-lock type connection mechanism shown in FIG. 1 was used between the shank and the tip (or shank-post-holder). When the holder is inserted into the holder, the pushrod is in the rear (right) and the ball falls into the sleeve. Tighten the locking screw with a wrench to push the rod forward, due to the role of the ram on the ramp, the ball fell into the hole in the handle, the role of the ball, the handle open