Champion S Tapp. Thread Insert 1 4In Unf 2Pk Thread Repair Kits Inserts S Tapping Inserts UNF Axle Stands it removes the need to it removes the need to launder cloths therefore saving time and improving hygiene practices while still removing 99 Useful for both alignment and for measurement purposes Mitutoyo proprietary new design permits smooth pointer operation Flat crystal makes graduations easy to read Strong frame provides excellent rigidity and durability Non magnetic pointer and contact point permit reliable operation even in magnetic environments Clear and concise wide dial face allows excellent visibility The surface of the crystal is hard coated for excellent scratch resistance O ring protection guarding against oil and water penetration Self Tapping Thread Inserts Internal Thread: 1 4 UNF Quantity: 2