Irwin Industrial Tool Co 91134 Silver Deming Drill Bit

Product Description

The IRWIN INDUSTRIAL TOOL CO 91134 is a 17/32-inch Silver Deming drill bit engineered for heavy-duty hole creation in metal, wood, and plastic. Constructed from M-7 high speed steel, this bit delivers high resistance to abrasion during demanding drilling applications. The 3-flatted shank design locks securely in the chuck to reduce slippage, and the bit is specifically suited for use in keyless chucks. At 6 inches in overall length with a 1/2-inch reduced shank, it fits all standard 1/2-inch drills. This package includes 6 bits.

This bit is designed for professionals working in automotive repair, body shops, and metal fabrication environments where large, accurate holes are required in tough materials. The standard 118-degree point geometry makes it versatile across wood, metal, and plastic substrates. It is commonly used by machinists, fabricators, auto body technicians, and general tradespeople who need a reliable large-diameter bit for production or service work.

Key Features

• M-7 high speed steel construction for abrasion resistance in tough drilling
• 3-flatted shank reduces slippage and improves chuck grip
• Compatible with keyless chucks for fast bit changes
• 1/2-inch reduced shank fits all standard 1/2-inch drills
• Standard 118-degree point for use in wood, metal, and plastic
• 6-inch overall length for deep-hole access

Compatibility

Designed for use in any standard 1/2-inch drill or drill press accepting a 1/2-inch reduced shank bit.

Installation Notes

Installation and use should be performed by qualified tradespeople familiar with metalworking or fabrication equipment. Ensure the drill or drill press is powered off and unplugged before inserting or removing the bit. Secure the 3-flatted shank firmly in the chuck before drilling to prevent slippage under load. Use appropriate cutting fluid when drilling hardened metals to extend bit life and maintain cut quality.