Cobalt Drill Bits - 3/32" Shank
A to Z Jewelry Tools & SuppliesThe Cobalt Drill Bits are made of steel mixed with cobalt to increase its strength and heat resistance, allowing the ability to drill through harder metals like stainless steel in addition to all other softer materials the standard steel drill bit can drill.
These Cobalt Drill Bits are sold by the piece and are made to fit with the standard handpiece on your flex shaft system.