Locking feature protects fingers and improves productivity. Solid steel side plate for added strength. keys lock into three positions (90, 135, 180 deg). Helps maneuver into awkward spaces and reduce slipping during use. Durable and ergonomic design. Set includes most popular sizes (S9, S10, S15, S20, S25, S27, S30 and S40). Star shaped hex key.
