CIRCULAR DISC CUTTER SET OF 7
7 High Quality Circular Disc Punches For Cutting Pefectly Round Discs In Sheet Metal
For Disc Sizes
1/4"-6.35mm
5/16"-7.94mm
3/8"-9.52mm
7/16"-11.11mm
1/2"-12.7mm
9/16"-14.3mm 
5/8"-15.87mm
Use Them With A Hammer Or A Hydraulic Press
Made From High Carbon Tool Steel
For Use With Soft Metals Like Gold & Silver
Weights 540gm Approx