Adjustable circular split die, for Unified National Fine thread UNF 1/4" with 28 TPI, to reduce the torque when cutting by hand split dies can be adjusted in small increments up to a maximum of approximately 0.006", dimensions according to BS 1127:1950 standard with 13/16" outside diameter and 1/4" thickness, HSS with bright finish for threading in free machining and plain carbon steel, ferritic stainless steel and gray, malleable, ductile and compacted graphite cast-iron More information:  | | Coating name (Grade): | Bright | Surface treatement: | Original surface | Basic standard group (BSG): | BS 1127:1950 | Body diameter - fractional inch (BD): | 13/16 | Body material code (BMC): | HSS | Brand Name: | Dormer | Hand (Cutting direction): | Right | Die chamfer to pitch ratio (DCPR): | 1,75 XP | Overall length - fractional inch (OAL): | 1/4 | Thread diameter size (TDZ): | 1/4 | Thread diameter - millimeter (TD): | 6,35 mm | Thread form type (THFT): | UNF - Unified Fine | Threads per inch (TPI): | 28 | Ordering code ISO: | F3301/4X13/16 |
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