Hole Saw DRAUMET BI-METAL M2 57×34 mm — DRAUMET otwornica

DRAUMET BI-METAL M2 57×34 mm hole saw is designed to cut precise circular openings with a nominal diameter of 57 mm and a cutting depth of 34 mm. Made from bi-metal M2 alloy, the otwornica balances hardness and toughness to provide extended life and reliable performance when working with thin metal sheets, wood and some plastics. The tool is intended for use with standard hole saw arbors and drill drivers capable of handling bi-metal cutters.

Advantages

The bi-metal M2 construction combines a high-speed cutting edge with a flexible backing, reducing the risk of premature breakage and improving resistance to heat during extended cutting. Tooth geometry and material pairing deliver efficient chip removal and steady cutting progress, while the 57 mm diameter and 34 mm depth enable installation of pipes, conduits and ventilation elements without additional reaming. The tool is compatible with common arbors, offering straightforward mounting and removal.

Suitable for

• Cutting circular openings in thin sheet metal
• Installing pipes and conduit through panels
• Making ventilation outlets and duct entries
• Creating holes in wood and some plastics for fixtures and fittings

Key specifications

• Cutting diameter: 57 mm
• Maximum cutting depth: 34 mm
• Material: bi-metal M2 (high-speed edge on flexible backing)
• Suitable for use with compatible hole saw arbors and drill drivers
• Designed for cutting thin metal, wood and selected plastics

How to use

Select a compatible arbor and secure the DRAUMET BI-METAL M2 57×34 mm hole saw to the arbor according to the arbor manufacturer's instructions. Mark the center of the intended hole and, if possible, drill a pilot hole to guide the pilot bit or arbor. Use a drill or driver with appropriate speed and torque settings for the work material; moderate speed is recommended for metal and higher speed for wood or plastics as appropriate. Apply steady, even pressure and allow the cutter to do the work; avoid forcing the tool to prevent overheating. Periodically withdraw the cutter to clear chips and cool the cutting zone when making deep or long cuts.

Usage recommendations

When cutting metal, use cutting fluid or coolant to reduce heat and extend cutter life. Wear appropriate personal protective equipment such as eye protection and gloves. Ensure the workpiece is securely clamped and the drill is kept perpendicular to the surface for an accurate, clean hole.