OSG Threading Tap - BSPT Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1/8 x 28 ISO Insert - CN Style 005 mm) in a taper‑shank

005 mm) in a taper‑shank

and ensure parts fit correctly in your critical applications

repeatable thread checks for M56 x 2 right-hand fasteners within the 6g tolerance class

smooth hole finish across materials

while the durable W-coated carbide core resists wear for longer tool life

OSG Threading Tap - BSPT Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1/8 x 28 ISO Insert - CN Style 005 mm) in a taper‑shankEngineered for BSPT threading in blind holes, the OSG BSP Spiral Flute Threading Tap (1 8 x 28) delivers precise, reliable BSPT threads when access is limited to deep or recessed holes. Crafted from cobalt enhanced HSS E and protected by a Steam Oxide coating, this tap is built for durability and steady performance in challenging machining tasks. Size and threading: 1 8" nominal size with 28 threads per inch (BSPT), designed for blind hole tapping.