The OSG Threading Tap BSW A-Spiral Flute is a precise right-hand tap engineered to cut British Standard Whitworth threads in blind holes. Designed for machinists and restoration projects, it delivers clean, accurate threads in recessed or closed-end cavities.

• Thread Type: British Standard Whitworth (BSW) threads for compatibility with classic UK hardware and components.
• A-Spiral Flute: Spiral flute geometry enhances chip evacuation in blind holes, reducing binding and improving cutting stability.
• Material: Powder metal construction for exceptional hardness, wear resistance, and long tool life in demanding work.
• Coating: TiCN (Titanium Carbonitride) coating lowers friction and increases surface hardness for higher cutting speeds and extended tool life.
• Working Direction: Right-hand configuration designed for standard clockwise threading.
• Hole Type: Optimized for blind holes where chips must be efficiently removed without through-holes.
• DIN Standard: DIN2184-1 geometry ensures precise thread form and compatibility with standard Whitworth fittings.
• Size: 1 x 8, as listed in the product title, indicating the tap’s specified dimensions for this application.

The combination of a powder metal body, TiCN coating, and an A-spiral flute delivers reliable performance when tapping into limited-access holes. Expect smoother cuts, reduced risk of tap breakage, and consistently clean Whitworth threads that fit standard nuts and bolts. This tap is well-suited for vintage machinery restoration, automotive components, and any project requiring accurate BSW threads in blind cavities.