Somta Series 521 - HSS Straight Flute Short Hand Second (Intermediate) Tap BSW 5/16" x 18 TPI Helicoil Kit 1/2-20 thread repair ; insert tap set ; workshop tool imperial The Insize 150x100mm Machinist Square

The Insize 150x100mm Machinist Square is a precision 45° measuring tool crafted from hardened stainless steel

Insize 25–300 mm Digital Groove Caliper

The Haron TSS7 Universal Tap Spanner Kit

perfectly designed for MT3 internal to MT5 external applications

Somta Series 521 - HSS Straight Flute Short Hand Second (Intermediate) Tap BSW 5/16" x 18 TPI Helicoil Kit 1/2-20 thread repair ; insert tap set ; workshop tool imperial The Insize 150x100mm Machinist SquareAchieve precise and consistent Whitworth threading with the SOMTA Series 521 HSS BSW Tap 5 16" Intermediate. Designed for general hand tapping, this high speed steel (HSS) tap ensures durability and accuracy, making it ideal for through hole and blind hole applications. Key Features: Thread Size: 5 16" BSW (British Standard Whitworth) Standard: ISO 529 Material: High Speed Steel (HSS) for enhanced strength and wear resistance Thread Form: 55 flank