Drill Hulk 9-32 Inch Cobalt M35 Jobber Length Twist Drill Bits – Pack of 6

Overview

Meet the Drill Hulk 9/32-inch cobalt drill bits, a six-pack designed to tackle tough metalworking tasks with confidence. Built for hard metals and stainless steel, these bits combine robust construction with precise geometry to support reliable holes from the first cut to the last.

What makes these bits stand out

Crafted from high-speed steel with 5% cobalt, they offer enhanced heat resistance and red hardness compared to standard HSS drill bits. The result is steadier performance under demanding drilling conditions, helping you maintain cutting efficiency when working with resilient materials.

• High-speed steel with 5% cobalt for improved heat tolerance
• Uniform hardness throughout allows repeated sharpening without edge damage
• 135-degree split point reduces walking and starts holes cleanly
• 3-flat shank provides a secure grip in most chucks

Key specifications at a glance

The bits feature a 9/32-inch cutting diameter, a flute length of 2-15/16 inches, and an overall length of 4-1/4 inches. The design is optimized for hard metals, including stainless steel, making it useful for automotive, fabrication, and workshop projects.

• Diameter: 9/32 inch
• Flute length: 2-15/16 inch
• Overall length: 4-1/4 inch
• Point geometry: 135-degree split point
• Shank: 3-flat for better chuck grip

Real-world use cases

These cobalt bits excel in drilling through hard metals such as stainless steel, alloy steels, and other demanding alloys. The materials and geometry are well-suited for fabricating fixtures, repairing equipment, or finishing projects that require precision through tough substrates.

Tips for best results include keeping a steady feed rate, using sharp, clean drill bits, and applying appropriate lubrication on tougher materials. The included case helps keep each bit organized and readily accessible between jobs.