[Larger plate.]

[2088]. Adjustable tap wrench.

[2089]. Elevating tool box.

[2090]. Tool head for milling or surfacing.

[2091]. Three-jaw guide or chuck. The three sliding jaws are usually set up by screws.

[2092]. Two-jaw chuck. The jaws are travelled simultaneously opposite ways by a right and left-hand screw.

[2093]. Drill socket, with diagonal pin to grip the drill shank when screwed up.

[2094]. Instantaneous grip for vice, &c. The worm A is eccentric, and lifts or lowers the toothed abutment block B into or out of gear with the fixed rack by a single movement of the handle C. When out of gear A B C, with the shaft and front jaw, can be slid in or out freely to any size of opening required.

[2095]. Clip for a rod or cord.

[2096]. Split sleeve and nut to grip a rod or shaft.