Hole saw (cup saw) c.k tools 424013 43 mm

c.k tools 424013 43 mm cup saw is a bi-metal hole saw designed to produce precise 43 mm diameter holes in a variety of common building materials. It is intended to be fitted to compatible arbors or mandrels and used with drills to cut openings for pipes, conduits, cable glands, and fixtures. The saw's construction balances cutting speed and durability to meet both professional and DIY requirements where a consistent round bore is needed.

Advantages

The 43 mm cup saw offers accurate, repeatable cuts with a clean edge, reducing the need for secondary finishing. Its bi-metal construction provides improved resistance to heat and wear compared with simple carbon-steel cutters, extending service life under typical drilling loads. Designed for straightforward attachment to standard arbors, the tool provides stable cutting action and predictable hole diameter for installation tasks.

Suitable for

• Cutting holes for plastic and metal conduit installations
• Creating openings for plumbing pipes and fittings
• Installing cable glands and electrical fixtures in panels and walls
• General-purpose drilling tasks in wood, plasterboard, thin sheet metal and plastics

Key specifications

• Cutting diameter: 43 mm
• Type: cup saw / hole saw
• Material: bi-metal cutting edge (high-speed steel teeth bonded to flexible body)
• Fitment: designed for use with compatible arbors/mandrels and drills
• Typical applications: wood, plasterboard, plastics, thin sheet metal

How to use

Secure the 43 mm cup saw to a compatible arbor or mandrel according to the arbor manufacturer's instructions, ensuring the pilot drill or centring device is fitted if required. Mark the centre of the required hole and position the pilot bit on the mark. Begin drilling at low speed to establish the cut, then apply steady feed and moderate speed appropriate to the work material. Withdraw the saw periodically to clear debris and allow the cutter to cool. After cutting, remove any burrs or swarf from the hole if a smooth finish is required.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses and gloves. Match drill speed and feed to the material: lower speeds for metals, higher speeds for wood and plastics. For thin sheet metal, support the workpiece to avoid deformation and use lubrication where recommended to extend tool life. Inspect the saw teeth before use and replace if worn or damaged.