Hougen 11085 Hss Annular Cutter Set 21 Piece 1/4-3/4 in

Product Description

The HOUGEN 11085 is a 21-piece high-speed steel annular cutter set designed for precise, clean-hole drilling in metal fabrication and structural steel work. The set covers cutter diameters from 0.25 inches to 0.75 inches with a cutting depth of 0.25 inches per pass. Each cutter features a bright, uncoated finish and a three-flat shank for secure tool holding and reduced slippage under load. This set is used by ironworkers, pipefitters, millwrights, and maintenance technicians who need a ready-to-go assortment of annular cutters without sourcing individual sizes.

Annular cutters remove only the material at the hole perimeter rather than the full core, resulting in faster cutting speeds and less heat generation compared to twist drills. This set is well suited for on-site structural steel drilling, fabrication shop work, and maintenance applications where multiple hole sizes are required. The included arbor, center punch, and three pilots make the set self-contained for immediate use with compatible magnetic drill presses.

Key Features

• 21 pieces total: 16 annular cutters, 1 arbor, 1 center punch, and 3 pilots
• Cutter diameter range from 0.25 inches to 0.75 inches
• 0.25 inch cutting depth per cutter
• High-speed steel construction for durability in ferrous metal cutting
• Bright, uncoated finish for general-purpose steel drilling
• Three-flat shank design reduces rotational slippage in the tool holder

Compatibility

Designed for use with magnetic drill presses and drill press arbors that accept a three-flat shank annular cutter. Consult your drill press manufacturer specifications to confirm arbor compatibility before use.

Installation Notes

Annular cutter sets of this type are installed and serviced by qualified metalworkers or maintenance technicians using a compatible magnetic drill press. Always secure the workpiece and verify the magnetic base is fully engaged on a clean, flat steel surface before drilling. Use cutting fluid appropriate for the material to extend cutter life and reduce heat buildup. Power down and de-energize the drill press before changing cutters or pilots.