Hougen 11087 Hss Annular Cutter Set 5/16-1-1/2 in 19 Pc

Product Description

The HOUGEN 11087 is a 19-piece high speed steel annular cutter set covering diameters from 5/16 inches to 1-1/2 inches. Annular cutters remove only a ring of material rather than the full hole cross-section, producing cleaner holes with less heat and lower feed force compared to twist drills. The set is finished bright for corrosion resistance and includes 13 cutters with three flats on the shank for positive tool holding in compatible magnetic drill press arbors. Machinists, ironworkers, and structural steel fabricators are the primary users of this set.

This set is suited for metal fabrication shops, structural steel contractors, and maintenance crews working with plate steel, tube, and structural shapes. The 13 cutter sizes span 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8, and 1-1/2 inches, covering the most common hole sizes needed in steel construction and fabrication work. The set also includes two arbors, two center punches, and two pilots, giving a crew the supporting tooling to put multiple magnetic drills into service simultaneously.

Key Features

• 13 annular cutters in 13 sizes from 5/16 inches to 1-1/2 inches diameter
• High speed steel construction for durability across mild steel applications
• Bright polished finish provides baseline corrosion resistance in shop environments
• Three flats on each shank for secure, non-slip seating in arbor chucks
• Includes two arbors, two center punches, and two pilots for complete setup
• 19-piece count supports multi-drill jobsite or shop use without resorting to sharing tooling

Compatibility

Designed for use with magnetic drill presses and drilling arbors that accept annular cutters with three-flat shanks, which is the standard configuration for this cutter type.

Installation Notes

Annular cutter sets are installed and serviced by machinists, ironworkers, and structural fabricators. Before changing cutters, power down and lock out the magnetic drill press per OSHA lockout/tagout requirements. Seat the shank flats firmly against the set screws in the arbor chuck before applying power. Use cutting fluid appropriate for the base material to extend cutter life and reduce heat buildup during drilling.