Irwin 10502565 HSS Cobalt Drill Bit 10.0 x 133 mm

This cobalt-coated high-speed steel drill bit is designed for drilling into tough metals, including alloy steel and stainless steel. It features a 5% cobalt surface coating to improve heat resistance and extend lifespan, while its spiral design facilitates efficient cutting and chip removal. The bit has a 135° point angle for clean centering and reduced drilling pressure, making it suitable for both professional and DIY applications. With a cylindrical shank and standard chuck compatibility, it can be used in electric drills and drill presses. Overall length is 133 mm with a working length of 87 mm, and the body is engineered for reliable performance across demanding metalworking tasks. The golden tempered surface adds corrosion resistance, contributing to longer service life in challenging environments. This bit is sold as a single piece and is appropriate for drilling into a range of hard metals.

Features

• 10.0 mm diameter
• 5% cobalt alloyed HSS body
• 135° split point for centering
• Industrial quality ground flute
• 87 mm working length, 133 mm overall length

Technical specifications

• Overall length: 133 mm
• Working length: 87 mm
• Point angle: 135°
• Shank: Cylindrical
• Material: HSS with 5% cobalt coating
• Compatible with standard drill chucks; for electric drills and drill presses