General Tools 55 Heavy Duty Circle Cutter — Adjustable 1-3/4 in to 7-7/8 in, 1/2 in Shank

Overview

The General Tools 55 Heavy Duty Circle Cutter is built for professional environments where precise round cuts matter. It adjusts smoothly from 1-3/4 in to 7-7/8 in diameter, giving you a clear path to exact hole sizes for cabinetry, panels, or custom fittings. The 1/2 in round shank is designed for drill press use, providing stable, controlled operation as you work through different materials.

Crafted with a tempered steel body and marked graduations along the beam, this tool lets you measure quickly and apply settings with confidence. It includes a replaceable 1/4 in high-speed tool steel bit and a 1/4 in pilot drill, so you can begin cutting right away and swap components as your project evolves.

Key features

• Designed for professional use with clean cuts from 1-3/4 in to 7-7/8 in diameter
• Tempered steel body with graduations on the beam for fast, repeatable measurements
• 1/2 in shank intended for drill press use; maximum safe speed around 500 RPM
• Performs smooth cuts through a range of materials, including wood, plastics, sheet metal, and more
• Adjustments made with a hex wrench (included); replaceable blade (General Tools Model # 55) and replaceable drill (Model # 5/6/55)

What’s included and material scope

The package ships with a 1/4 in high-speed tool-steel cutting bit and a 1/4 in pilot drill. The cutter is capable of handling wood, composites, plastic, sheet metal, and other common project materials, making it a flexible choice for shop tasks.

Usage and guidance

• Secure the workpiece and set the desired diameter using the calibrated beam
• Install the bit and pilot drill, then operate at speeds within the recommended range for your material
• Maintain steady, even motion to achieve clean edges and minimize chipping

Design and durability

The tempered steel construction is designed for repeated use in demanding environments. The hex wrench enables precise adjustments, and the replaceable components help extend tool life. With a 1/2 in shank, the cutter is optimized for drill press stability, supporting consistent performance at up to 500 RPM. This combination of build and capability makes it a practical choice for professional workshops seeking reliable circle cutting.

Maintenance and sourcing parts

For ongoing performance, keep the shank and beam clean and free of debris. When the blade dulls, replace it with General Tools Model # 55 Blade and the drill with Model # 5/6/55 Drill to preserve cutting quality and consistency.