Straight-groove geometry: Delivers true straight grooves with flat bottoms for reliable seating and a clean
Tips for best results Pre-drill to the correct pilot size for the UNC 1/2 x 13 thread to ensure clean cutting and accurate thread formation
The combination of HSS-E cobalt composition and a stub
The combination of a solid carbide core and AlTiN coating supports steady performance
precision-focused build that stays true over many cycles
Vortex Carbide Burr Type J - Countersink - Single Cut - 12mm Diameter FMH Straight-groove geometry: Delivers true straightThe Vortex Carbide Burr Type J Countersink Single Cut is a high precision tool designed to create clean, angled countersinks in a variety of materials. Crafted from hardened carbide, it delivers exceptional durability and efficient cutting for deburring, finishing, and precise assembly tasks. Designed for engineers, machinists, tradespeople, and even serious hobbyists, this 12 mm diameter burr provides fast material removal with minimal chatter,