Irwin 10502551 HSS Cobalt Drill Bit 4.5 mm x 80 mm

This high-quality cobalt-alloyed HSS drill bit is designed for precise drilling in metal and stainless steel. It features a 135° split-point for accurate centring and reduced drilling pressure, along with an industrial spiral flute for efficient chip removal. Made with 5% cobalt, the bit offers increased heat resistance and durability, and a gold tempered surface finish that resists wear and corrosion. The bit has an overall length of 80 mm and a working length of 47 mm, and is compatible with standard drill chucks for use in alloy steel, metal, and stainless steel applications.

Features

• 135° split-point for precise centring
• 5% cobalt alloyed HSS body for heat resistance
• Industrial flute for fast chip removal
• Gold tempered surface resists wear
• Compatible with standard drill chucks

Specifications

• Diameter: 4.5 mm
• Overall Length: 80 mm
• Working Length: 47 mm
• Material: cobalt-alloyed high-speed steel (5% Co)
• Tip angle: 135°
• Suitable for: alloy steel, metal, stainless steel