Hole Saw AWTools OTWORNICA Bimetal 55 mm

AWTools OTWORNICA Bimetal 55 mm hole saw is designed for cutting clean round holes with a 55 mm diameter in a variety of materials including metal, wood and plastic. The bimetal construction combines a high-speed steel tooth edge with a flexible backing to provide a balance of wear resistance and toughness, suitable for general installation and maintenance tasks. The cutter fits common arbors and can be used with handheld drills and drill presses for through-holes in pipes, panels and structural components.

Advantages

The bimetal design increases service life compared with simple carbon-steel cutters while retaining sufficient flexibility to resist breakage under typical drilling loads. Teeth geometry is optimized for faster cutting and efficient chip evacuation when working in metal and softer materials, reducing heat buildup. The 55 mm diameter offers a standard size for many installation openings and retrofit applications. The hole saw is compatible with standard drill chucks and arbors, enabling use with a wide range of power drills and bench drilling machines.

Suitable for

• Cutting through thin to medium-thickness metal sheets and pipes
• Creating openings in wooden panels and furniture components
• Drilling holes in plastic and composite panels for installations
• Installing piping, cable glands, conduit entries and recessed fittings

Key specifications

• Cutting diameter: 55 mm
• Material: bimetal cutting edge with flexible body
• Suitable materials: metal, wood, plastic
• Application: through-holes for installation and maintenance
• Compatibility: designed for use with standard drill chucks and arbors

How to use

Mark the center of the required hole and secure the workpiece to prevent rotation. Fit the hole saw to a suitable arbor and tighten in the drill chuck according to the tool manufacturer’s instructions. Start drilling at low speed to establish the pilot position, then increase speed as appropriate for the material. Apply steady, even pressure and allow the cutter to do the work; withdraw periodically to clear chips and reduce heat. After cutting, deburr the hole edges as required for the intended installation.

Usage recommendations

Use cutting fluid or coolant when working with metal to extend tool life and improve cutting performance. Select drill speed appropriate to the material—lower speeds for harder metals, higher speeds for wood and plastics—and ensure secure clamping of thin or flexible workpieces to avoid vibration and uneven cuts.