Hougen 11211 Annular Cutter 0.4331 in Hss Bright

Product Description

The HOUGEN 11211 is a high speed steel annular cutter designed for fast, clean through-hole drilling in metal. It cuts only the outer ring of material, leaving a slug rather than drilling solid — this reduces heat, extends tool life, and requires significantly less torque than a twist drill of comparable size. The cutter diameter is 0.4331 inches (11.00 mm), the cutting depth is 1/4 inch, and the shank diameter is 3/8 inch. The bright, uncoated M2 high speed steel construction makes it well suited for general-purpose metalworking applications across a range of ferrous materials.

This cutter is intended for use in magnetic base drills, drill presses, and compatible handheld drilling units that accept a 3/8-inch shank. It is rated for use on mild steel, hardened steel, and stainless steel, making it a versatile tool for fabricators, ironworkers, HVAC sheet metal contractors, and structural steel tradespeople. The small diameter is particularly useful for tight-clearance layouts or pilot hole applications where precise hole sizing is critical.

Key Features

• 0.4331 inch (11.00 mm) cutter diameter for precise hole sizing
• 1/4 inch cutting depth suitable for standard plate and tube stock
• 3/8 inch shank diameter fits a wide range of magnetic drill and drill press chucks
• M2 high speed steel construction — bright, uncoated finish
• Annular cutting geometry reduces torque and heat compared to solid twist drill bits
• Rated for mild steel, hardened steel, and stainless steel applications

Compatibility

Designed for use with magnetic base drills, drill presses, and drilling units that accept a 3/8-inch shank annular cutter. Suitable for cutting mild steel, hardened steel, and stainless steel.

Installation Notes

Annular cutters should be installed by a qualified tradesperson familiar with magnetic drill or drill press operation. Ensure the drill is powered off and the cutter is fully seated and locked into the chuck before use. Use appropriate cutting fluid or lubricant when drilling stainless steel or hardened steel to manage heat and extend cutter life. Always secure the workpiece before energizing the magnetic base or starting the drill.