(5)6PC COBALT SET

The Milwaukee 48-89-2330 is a 6-piece RED HELIX™ cobalt drill bit set made for drilling tough materials like stainless steel, hardened steel, and cast iron.

Key Features

• Cobalt Alloy Construction – Built for extreme heat resistance and long life in hard metals (up to ~10–15× longer than standard black oxide bits)
• RED HELIX™ Variable Flute Design – Aggressive 35° helix transitions to 15° for faster chip removal and reduced heat buildup
• QUADEDGE™ 135° Split Point Tip – Helps start on contact and reduces walking for accurate drilling
• Enhanced Tapered Web – Strengthens the bit core to reduce breakage under torque
• Secure-Grip Shank – Helps prevent slipping in the chuck

Included Sizes

• 1/16"
• (2) 1/8"
• 3/16"
• 1/4"
• 5/16"

Best Uses

• Stainless steel drilling (primary use)
• Hardened steel and alloys
• Cast iron
• Heavy fabrication and mechanical work