Irwin 3016008 Jobber Drill Bit 1/8 in Cobalt Steel

Product Description

The IRWIN 3016008 is a jobber-length drill bit designed for general-purpose hole making in metal, wood, and other materials encountered in industrial and trade applications. Built from cobalt steel with a bright finish, this bit features a 135-degree split-point tip that reduces walking at startup and allows for faster penetration with less feed pressure. The straight shank is compatible with standard drill chucks. At 2.75 inches overall length, this is a compact, true jobber-length format suited to benchtop drill presses, hand drills, and CNC setups where consistent hole quality is required.

This bit is intended for industrial and commercial end users including machinists, fabricators, plumbers, electricians, and HVAC technicians who need reliable small-diameter drilling in ferrous and non-ferrous metals. The cobalt steel construction provides elevated heat resistance compared to standard high-speed steel bits, making it appropriate for drilling harder materials such as stainless steel and cast iron. Packaged individually, it is a direct replacement or add-to-kit option for 1/8-inch diameter work.

Key Features

• Cobalt steel construction for improved heat resistance and hardness
• 135-degree point angle reduces bit walking and improves hole entry accuracy
• Straight shank fits standard drill chucks without adapters
• Bright finish for easy visual inspection of bit wear
• Jobber-length format balances reach and rigidity for general drilling tasks

Compatibility

Designed as an OEM-style replacement or stock bit for standard 3-jaw drill chucks accepting straight-shank bits in 1/8-inch diameter across benchtop drill presses, hand drills, and light CNC equipment.

Installation Notes

This bit is installed and changed by machinists, fabricators, and trade technicians using a standard chuck key or keyless chuck. Always power down and de-energize the drill or drill press before changing bits. Secure the shank fully in the chuck jaws and confirm the bit is centered before operation. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and reduce heat buildup.

Technical Specifications

• Drill Diameter: 1/8 inches (0.125 inches)
• Overall Length: 2.75 inches
• Point Angle: 135 degrees
• Shank Configuration: Straight
• Material: Cobalt Steel
• Surface Finish: Bright
• Package Quantity: 1 each

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: 3016008