Hougen 3-12240 Annular Cutter 1-1/4 in Hss Weldon

Product Description

The HOUGEN 3-12240 is a high speed steel annular cutter designed for cutting clean, precise holes in mild steel and steel plate. With a cutter diameter of 1.25 inches and a cutting depth of 3 inches, this cutter handles deep-hole applications where twist drills fall short. The Weldon flat shank measures 3/4 inches in diameter with two flats for positive drive and reduced slip. The bright, uncoated finish leaves the HSS cutting edges exposed for direct contact with the workpiece. Fabricators, ironworkers, and maintenance trades use annular cutters like this one with magnetic base drills to produce burr-minimal holes without center punching through the full cross-section of the material.

This cutter is suited for structural steel fabrication, ironwork, and on-site drilling operations where a magnetic drill press is the tool of choice. The 3-inch depth of cut accommodates thick structural members, gussets, and built-up steel sections in both shop and field environments. Its 1.25-inch diameter is a common size for bolt clearance holes and conduit pass-throughs in steel framing and plate work.

Key Features

• 1.25-inch cutter diameter for standard bolt and conduit clearance holes
• 3-inch depth of cut handles thick structural members and built-up sections
• High speed steel construction provides durability in mild steel applications
• Weldon flat shank with two flats ensures positive engagement and minimal shank slip
• 3/4-inch shank diameter fits standard magnetic drill arbors accepting Weldon-style tooling
• Bright, uncoated finish — no coating buildup to affect cutting tolerance

Compatibility

Designed for use in magnetic drill presses and annular cutter holders that accept a 3/4-inch Weldon flat shank. Rated for cutting mild steel and steel applications.

Installation Notes

Installation and use of this cutter should be performed by qualified fabricators or trades familiar with magnetic drill press operation. Ensure the magnetic base is fully engaged and the workpiece surface is clean and flat before beginning any cut. Use cutting oil or lubricant appropriate for HSS tooling on steel to extend cutter life and improve hole quality. Do not exceed the rated cutting depth or apply side-loading force to the shank during operation.