3-1/2" x 50 Yd 80 Grit Aluminum Oxide Shop Roll MPN:RP-1141

Featuring a 1/2-20 UNF size, this spiral point STI tap delivers high performance cutting thread while allowing for easy assembly of coarse or fine threads in applications with diverse material or hardness requirements due to its modified bottoming design with reduced clearance at the bottom of threads. Manufactured using premium High Speed Steel for durability and heat resistance, it provides superior performance in through-hole PCBs or multi-material applications within the aerospace, electronics or transportation industries seeking secure, dependable threadlocking for components and subassemblies requiring self-tapping screws, blind holes or high-pressure sealing. Its V-finish shank minimizes burrs for precise fitment, allowing smooth transfer of torque during installation in various metal surfaces, including stainless steel, aluminum or steel alloys where reliability and stability are crucial to prevent corrosion or thread galling when using STI technology for manufacturing or MRO workbenches.