Itm 255h20 Metal Drill Bit 5/16x4 Inch Impact Hex Shank

Product Description

The ITM 255h20 is a 5/16-inch diameter by 4-inch length M2 high-speed steel jobber drill bit built for use with impact drivers. The 1/4-inch hex shank seats securely in standard impact driver chucks, allowing the bit to handle the high-torque, percussive action that impact drivers deliver. M2 high-speed steel provides the hardness and heat resistance needed to drill through ferrous and non-ferrous metals, including mild steel plate, angle iron, and sheet metal. This bit is a practical choice for electricians, plumbers, HVAC technicians, and general contractors who drill metal on the job and prefer to run a single impact driver rather than switching to a dedicated drill.

The 255h20 is suited for metal drilling tasks in both residential and light commercial work. Typical applications include drilling through steel studs, conduit hangers, junction box knockouts, and structural steel members. The jobber-length body gives enough reach for most standard penetrations while keeping the bit rigid enough to stay on target. Tradespeople who carry impact drivers as their primary rotary tool will find this bit a direct fit for everyday metal-drilling work on the job site.

Key Features

• M2 high-speed steel construction for heat resistance and edge retention in metal drilling
• 1/4-inch hex shank compatible with standard impact driver chucks
• 5/16-inch diameter cuts clean holes in mild steel, sheet metal, and similar materials
• 4-inch jobber length provides reach for structural and framing applications
• Impact-rated design handles the torque and percussion output of impact drivers

Compatibility

Designed for use with standard 1/4-inch hex chuck impact drivers used in metal drilling applications across electrical, plumbing, HVAC, and general construction trades.

Installation Notes

This bit is installed by licensed trades and general construction workers using standard impact drivers with a 1/4-inch hex chuck. Secure the workpiece before drilling and use appropriate cutting fluid or lubricant when drilling thicker steel to extend bit life. Wear appropriate eye protection when drilling metal. Do not use this bit in a hammer drill mode intended for masonry.

Technical Specifications

• Bit Diameter: 5/16 inches
• Bit Length: 4 inches
• Shank Type: 1/4-inch hex
• Material: M2 high-speed steel
• Bit Style: Jobber
• Application: Metal drilling with impact drivers

Standard Information

• Brand: ITM
• Manufacturer Part Number: 255h20