OSG Threading Tap - BSPT Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1/8 x 28 ISO Insert - CN Style Carbide construction offers excellent hardness

Carbide construction offers excellent hardness and wear resistance for repeated use

smooth hole finish across materials

05 mm to ensure consistent pin seating

long-length cutter engineered for precision pocketing and deep cavity milling

you can expect consistent hole quality and reliable performance across demanding drilling tasks

OSG Threading Tap - BSPT Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 1/8 x 28 ISO Insert - CN Style Carbide construction offers excellent hardnessEngineered 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.