OSG Threading Tap - BSF Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 1/2 x 16 Magnetic Lifting Gear 2 at the tip to

2 at the tip to preserve sharp internal corners and minimize chipping when working with tough materials

5 for Chip Control: The corner radius minimizes chipping on corners and pockets

NoGo Minimum Material Condition Check: Verifies the thread stays within the lower limit of the allowable size

repeatable hole sizes for consistent fits across jobs

4 x 40 UNC tapping specification for small fasteners and compact assemblies

OSG Threading Tap - BSF Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 1/2 x 16 Magnetic Lifting Gear 2 at the tip toThe OSG BSF Spiral Point Threading Tap is built for professionals who demand precise British Standard Fine threads in through hole applications. Crafted from high speed steel with cobalt (HSS E) and finished with a Steam Oxide coating, it delivers durability, heat resistance, and reliable performance in demanding tapping tasks. Threading Type: BSF Spiral Point design for efficient forward chip evacuation and clean, straight threads. Size & Pitch: 1 2"