3/8 Inch Cobalt Drill Bit Set, HSS M35, Industrial Grade, TiAlN Coated - size: 3/8 Inch

About this item

• 3/8" Diameter for Heavy-Duty Applications: Suitable for large holes in structural steel, beams, and heavy plates
• Superior Hardness & Durability: Made from M35 cobalt HSS containing 5% cobalt, heat-treated to HRC 72 for extreme durability in hard metal applications
• High-Performance TiAlN Coating: Withstands temperatures up to 1000°C, protecting the bit from burning and ensuring consistent performance in stainless steel and structural steel
• 135° Split Point for Aggressive Starts: Self-centering tip reduces walking and dramatically lowers drilling force, ideal for thick plates and beams
• Ideal for Construction and Fabrication: Perfect for steelworkers, ironworkers, and heavy equipment maintenance
• The drill bits use a dual-layer design for security and durability. The outer clamshell is ultrasonically welded, making tampering evident and ensuring factory-fresh arrival. Inside, a custom storage box prevents metal-on-metal contact, protecting bit edges and coatings. The box also serves as a permanent organizer, keeping bits separated by size. This system guarantees product integrity at purchase and offers a reusable storage solution for the bits' lifetime

Overview

• Material: Cobalt Steel
• Cutting Diameter: 9.53 millimeters
• Finish Type: Titanium Aluminum Nitride
• Brand: Miskamro
• Tool Flute Type: Spiral