Fowler 52 490 100 Micro Tap Guide Hardened Tension Pin, 0.1875" Diameter, 1/2" Shank Diameter

1 year warranty offered by Fowler Precision The Micro Tap Guide is knurled for easy handling. Hardened shank diameter: 1/2" Hardened tension pin diameter: 3/16" Incorporates the use of an adjustable tension spring Reversible tension pin for male and female hole centering of tap