Collet-Style Releasing Tap Holder (TT-5/8)

The collet-type releasing tap holder is used to provide thread length control on machines that have reversible spindles. The unit can be used for either right- or left-hand taps by switching a lever in the body of the tap holder.

The tap holder mounts into a machine turret or a round shank tool holder. TT style tap holder collets are used for accurate holding and centering of taps. To provide a positive drive for the taps, the collets have a square hole in the back to accommodate the square of the top shank and a notch in the back bearing of the collet that fits over a hardened pin in the bottom of a holder. Ten tap holder collets are available to hold taps from a 0 tap size to 1/2" maximum, including 1/16" and 1/8" pipe tap sizes.

• Shank: .625"
• Diameter: 15.85mm