Bordo 3/8" x 16 BSW 1" Chrome Button Die Carmex External Right Hand ISO Thread Turning Insert 22mm / 4.0 TPI / 22 ER 4.0 ISO BMA Blue Finish – Reduces friction

Blue Finish – Reduces friction and helps retain coolant during cutting

Recommended for materials with a hardness lower than 90 HA

Trusted by machinists and technicians for its consistent performance in deep-hole applications

Its rust-resistant

Bordo 3/8" x 16 BSW 1" Chrome Button Die Carmex External Right Hand ISO Thread Turning Insert 22mm / 4.0 TPI / 22 ER 4.0 ISO BMA Blue Finish – Reduces frictionThis 3 8" x 16 BSW Chrome Button Die is designed for cutting, restoring, and cleaning British Standard Whitworth (BSW) external threads. Split circular chrome alloy button dies are typically used with a die stock handle and are ideal for threading applications where space or accessibility is limited. Key Features: Thread Standard: British Standard Whitworth (BSW), one of the earliest standardised thread forms. Versatile Use: Functions as a thread