Insiz Beveled Edge Square 50×40 mm Grade 00 Series 4790 050 E Z Coil Kit Economy 5 16" 18X2D Unc Helicoil Thread Repair Measurement Range: Outside: 50 75mm Somta Series 163 – 6.9MM UDL Stub Drill HSS Co5 Measurement Range: Outside: 50 75mm Technical Specifications🔹 Thread Size: BSW 1 8"🔹 Thread Standard: British Standard Whitworth (BSW)🔹 Thread Tolerance Class: Class 2🔹 Flank Angle: 55°🔹 Tap Type: Gun Nose Spiral Point Short Machine Tap🔹 Cutting Direction: Right Hand🔹 Application: General Purpose Through Hole Tapping🔹 Shank Standard: ISO 529🔹 Material: HSSE V3 (High Speed Steel)🔹 Hole Type: Through Hole The INSIZE 4790 050 Beveled Edge Square is a precision tool designed for accurately checking the squareness of internal and external angles Country of Origin: China