91AM7
Screw Tap
Mack

This tap is used to create or repair internal threads in metallic components, enabling fastener installation in restricted spaces or on hardened materials. Precision threading minimizes runout and ensures clean engagement with accompanying screws or bolts, enhancing overall assembly reliability. It is particularly valuable during field repairs where damaged threads have to be restored to service quickly. Proper technique and lubrication extend tool life while preserving the integrity of the parent material. Selecting the appropriate thread pitch and diameter is essential to avoid cross threading or thread deformation. Source One Parts Center