Somma's Re-Tapping and Tapping Machines Provide Advantages in Operations

Originally titled 'Re-Tapping and Tapping Machines Provide Advantages in Operations'

Somma manufactures a re-tapping and tapping machine.

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Somma manufactures a re-tapping and tapping machine. The Re-Tap-Er machine, BB-SR, can re-tap threaded parts, chase threads and remove cut-off burrs from threads. It can also be used to inspect threads when a thread gage is mounted in the chuck. The BB-SR has a double disc friction drive that reverses rotation instantly by the application of forward or backward hand pressure on the part being tapped. The friction discs are driven by a rubber drive ring mounted on the motor shaft, and the maximum spindle speed is 1,000 rpm. The machine is assembled with the standard black neoprene rubber drive ring # BB-7. A heavy duty orange urethane drive ring, #BB-7HD, is also included.

This machine has recently had some design improvements to make it easier to replace the drive rings, and there is also a light switch now warning you if the motor is running.

The Somma tapping machine , STC-TAP-ER, can perform all of the operations done with a BB-SR,  but it can also tap up to a 5/16-18 thread in ½" thick steel. This machine has a double disc friction drive like the BB-SR that reverses rotation instantly by forward or backward hand pressure on the part being tapped. The friction discs, however, are driven by a heavy duty tapered cone drive collar mounted on the motor shaft instead of by drive rings such as the BB-SR. The maximum spindle speed is 300 rpm. The STC-TAP-ER features a sliding face plate, a work table that can be reversed when not needed, an adjustable "V" plate for positioning small parts, and a light switch warning you if the motor is running.

Both machines can be supplied without a motor, or with special motors for areas where 115V, single-phase motors are not suitable.