This Cobalt drill bit set are made out of M35 steel with 5% cobalt which give this drill a longer life than traditional HSS drills.

• 1350 Split Point cutting edge. 
• 10mm shank for the larger drills.
• Ideal for Stainless steel and high tensile steel.
• Sizing 1.0mm to 13.0mm in 0.5mm rises. 
• Comes in a handy ABS drill set.