RUKO SCE-DIN223-1/8x40-BSW Round Die, 1/8 inch BSW, 40 TPI, HSS, DIN 223

Precision-ground HSS round die for cutting 1/8" BSW threads at 40 TPI, conforming to DIN 223.

Overview

The RUKO SCE-DIN223-1/8x40-BSW is a round die engineered for cutting British Standard Whitworth (BSW) threads with a nominal diameter of 1/8 inch and 40 threads per inch. Manufactured from high-speed steel (HSS) with a bright finish, it offers durability and clean thread profiles in unalloyed and low-alloyed steels as well as non-ferrous metals. The die features a right-hand cutting direction and three flutes for efficient chip evacuation.

What stands out

• Ground thread profile for precise, consistent thread cutting.
• HSS construction ensures long tool life and resistance to wear.
• Conforms to DIN 223 (EN 22568) for reliable interchangeability.
• Compact 20 mm outer diameter fits standard die stocks of the same size.

Technical details

• Tool type: Round die
• Thread standard: BSW (British Standard Whitworth)
• Nominal thread diameter: 1/8 inch
• Threads per inch: 40
• Die standard: DIN 223 (EN 22568)
• Material: HSS (High Speed Steel)
• Cutting direction: Right hand
• Outer diameter: 20 mm
• Thickness: 7 mm
• Number of flutes: 3
• Finish: Bright (uncoated)
• Tolerance: Standard
• Manufacturing process: Ground thread

Our verdict

A dependable round die for professionals needing accurate BSW threads in common materials, backed by RUKO's precision grinding.