JEWELLERS SILVERSMITH STEEL BENDING BLOCK TOOL
165MM long and 60mm wide steel block Groove Grooves are following depths... 
1. 12mm 
2. 10mm 
3. 9mm 
4. 7mm 
5. 5mm 
6. 3mm ...for Round Grooves 
...6mm Depth for Square Includes 7 matching punches with 80mm approx handles 
SOLID STEEL BOXED WEIGHT 2500gm