With two-jaw chuck for clamping square shanks. Moveable T-handle with a groove at each end for engaging the retaining ball. Bracket chrome-plated. Ratchet is reversible and can also be locked. All-steel construction for high torque applications. Toolholder with precision concentricity and tight tolerances. Clamping jaws milled and induction hardened for high toughness and optimum surface hardness.

Suitable for tapping holes where access is difficult.

The square sizes of other tap and reamer sizes can be found in the tables in the respective Product Groups.