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Annular Cutters for Magnetic Base Drills

Annular Cutters for Magnetic Base Drills

Make accurate, smooth-walled holes to tight tolerances using less power and effort and generating less material for removal than traditional twist drill bits. Annular cutters, also known as core drills, have a hollow core surrounded by flutes and teeth that cut through the perimeter of the hole during drilling, leaving a solid slug in the center. A pilot pin centers the drill, allows coolant to flow to the tip during cutting, and removes the slug. These cutting tools can typically create more holes than traditional twist drill bits and hole saws before they must be resharpened and do not require predrilling or step drilling. Annular cutters are designed for use with drill presses with a magnetic base, but they can also be used with stationary setups such as mills, lathes, and CNC machines. Arbors and arbor adapters connect the cutter to the machine.

General Purpose High Speed Steel

When creating smooth-walled holes in a range of materials, including soft steels, carbon steels, wood, plastic, and nonferrous metals such as aluminum, brass, bronze, and copper, use one of these high-speed steel annular cutters. Choose a shank style that matches your tool setup and a finish that suits the material to be drilled in.

Weldon Shank

1 in Cutting Dp

2 in Cutting Dp

3 in Cutting Dp

Cobalt Steel for Hard Materials

These cobalt steel annular cutters are useful for cutting smooth-walled holes into hard materials such as hard steels, stainless steel, cast iron, titanium alloys, and nickel alloys. Choose a shank style that matches your tool setup and a finish that suits the material to be drilled in.

Weldon Shank

1 in Cutting Dp

2 in Cutting Dp

Carbide Tipped for the Toughest Materials

Choose these carbide or carbide tipped annular cutters and hole cutters for creating smooth-walled holes in tough materials such as cast iron, nonferrous alloys, glass, plastics, and composites. Choose a shank style that matches your tool setup and a finish that suits the workpiece material.

Weldon Shank

1 in Cutting Dp

2 in Cutting Dp

Tapped Shank

2 in Cutting Dp

Sets

Sets of annular cutters let you make holes in a variety of diameters. Each set contains multiple bits in a range of sizes with the same substrate material and finish. Choose a shank style that matches your tool setup and a substrate and finish that suits the material to be drilled in.

1 in Cutting Dp

2 in Cutting Dp

Arbors

Attach an annular cutter to your magnetic-base drill press with one of these arbors. Choose an arbor that is compatible with your tool setup and the shank size of the cutter you will be using. For other types of tool setups, an arbor adapter may be required.

Pilot Pins

Nail-like pilot pins are used with annular cutters to center the tool during cutting, provide coolant to the cutting teeth and slug to prevent seizing and galling, and remove the slug when the hole is finished. Each pilot pin can be used with cutters in a range of sizes.

1 in

2 in

6 in