Designed to make tapping easier, Speedaire Hand Tappers from W.W. Grainger Inc. are ideal for general-purpose tapping. Safe and efficient, they eliminate time-wasting hand tapping. The tappers feature a pneumatic high-reversal-type motor with added torque that allows the tapper to handle a range of tap sizes. The tapping cycle starts at the correct speed and reverses instantly. A quick-change toolholder provides tap changing flexibility and accepts optional clutch type tap holders. The tappers have an ergonomic pistol grip and adjustable side handle. Two models are available: the #4WXT7 (150 rpm) and the #4WXT6 (250 rpm), which comes with a muffler.
Related Glossary Terms
- quick-change toolholder
Cutter holder that permits rapid tool changes. Generally associated with automatic or semiautomatic machining operations. See toolholder.
Cylindrical tool that cuts internal threads and has flutes to remove chips and carry tapping fluid to the point of cut. Normally used on a drill press or tapping machine but also may be operated manually. See tapping.
Machining operation in which a tap, with teeth on its periphery, cuts internal threads in a predrilled hole having a smaller diameter than the tap diameter. Threads are formed by a combined rotary and axial-relative motion between tap and workpiece. See tap.
Secures a cutting tool during a machining operation. Basic types include block, cartridge, chuck, collet, fixed, modular, quick-change and rotating.