Best Carbide Straight Flute Uncoated 2-Flute Drill 0.32" / 21/64", 140° Drill Point Somta Series 551 - HSS Short Hand Tap 5/16" UNF Second (Intermediate) Part No : 4139-12R

Part No : 4139-12R

Packaged in a handy storage case

To know what size the insert should be it refers to the last two digits in the code -  CTFPR1616H11 meaning a TP-11 insert

With Lifting lever

this tap efficiently lifts swarf upward

Best Carbide Straight Flute Uncoated 2-Flute Drill 0.32" / 21/64", 140° Drill Point Somta Series 551 - HSS Short Hand Tap 5/16" UNF Second (Intermediate) Part No : 4139-12RBest Carbide's high performance cutting tools are engineered for precision and durability. This tool is part of a specialized series built for accurate milling, drilling, and slotting operations across a wide range of materials. Cutting Diameter: 0. 3281 21 64 Shank Diameter: 21 64 No. of Flutes: 2 Made from solid carbide for extended tool life Optimized for performance in steels, alloys, and hardened materials Manufactured in the USA to exacting