645-603 || .3346 Diameter, Uncoated Reamers – 45 Degree Corner Chamfer
- Precision 45° corner chamfering for deburring, edge breaking, and controlled countersink applications
- Commonly used in tool & die, aerospace, automotive, and general precision machining
- Produces clean, consistent chamfers while improving edge strength and part finish
- Manufactured from A-Gr-SiV Premium Carbide Blend (Active Grain Sized Volume) for superior wear resistance and dimensional stability
- Proudly made in the USA from solid carbide for reliable, repeatable performance
Mastercut Tool Corp. (c) 2026