This Angle gauge set is made of high quality stainless steel, high hardness, and durable in use
Diameter drill front edge of the protractor 50 gauge 118 ° summit angle of twist drills grinding gauge suitable for 118 °summit diameter of not more than 50mm of grinding twist drills
Is a practical Angle gauge set in drill bits Angle measuring and drill sharpener inspection
Cutting tool angle is 60 degrees for a tooth‑shaped angle 55 degree angle and metric thread, inch thread inspection, blade and special measuring tools for measuring angles