Cobalt Steel Twist Drill Complete Set of 19 on 3/32" Shanks-0.50mm to 2.20mm Engraving Machines untreated Country of Origin Germany

untreated Country of Origin Germany Notes

Quick head changes support efficient workflow during metalsmithing and jewelry fabrication

Platinum variants are alloyed at 950 platinum / 50 ruthenium (95Pt/5Ru)

Round bezel block with matching punch

Cobalt Steel Twist Drill Complete Set of 19 on 3/32" Shanks-0.50mm to 2.20mm Engraving Machines untreated Country of Origin GermanyThis Complete Set of 19 Cobalt Steel Twist Drills provides a full size range from 0. 50 mm to 2. 30 mm, each mounted on 3 32" shanks for fast, convenient tool changes. Cobalt steel delivers longer tool life than high speed steel, especially when drilling harder materials such as nickel based white golds and stainless steels. The result is consistent cutting performance across both tough alloys and softer precious metals. Features Cobalt steel