

Automatic self-centering handle. Plungers telescope within each other providing a positive seat in all positions. Constant spring tension gives uniform contact pressure. Plungers are easily locked at any desired setting. Contact ends are hardened and ground to a radius to provide proper clearance.
3-Piece Set.
Includes 3 sizes No.'s 299A, B, C (from 1/2" to 2-1/8") & case.