Description
Praztech Engineering Set of 2 Spring Center Tap Guide Tool to Align Tap for threading Lathe Mill Jig Bore | Precise | Hardened Alloy Steel Made | Tapping Application made EASY Precise hardened alloy steel While the hardened point is inserted into the middle of the tapping handle, the stroke of the center will follow the tap, assuring straight and accurate hand tapped threads One universal size for all tapping applications. Point hardened to 50-55 HRC, 12mm (1/2") shank with a spring loaded centre and 85mm is overall length