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32mm Bi-Metal Holesaw for Electrical Installation

£399
The RRP is the manufacturer's recommended retail price of the item.
Limited Stock
We are an Independent UK Company
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Description

The Knightsbridge 32mm bi-metal holesaw is a cylindrical cutting tool with variable 4/6 teeth per inch (TPI) designed to drill clean circular holes through steel, stainless steel, die-cast metals, hardwood flooring, plywood and rigid plastics. The 32mm diameter matches the standard cut-out requirement for many electrical socket boxes, downlight housings and cable access grommets in commercial and residential installation work.

The bi-metal construction combines a high-speed steel cutting edge welded onto a flexible spring steel body, allowing the holesaw to withstand the heat and torque generated when cutting through harder materials like stainless steel or mild steel plate without the teeth fracturing. The 38mm cutting depth handles most standard wall thicknesses, electrical back boxes and worktop installations in a single pass without needing to drill from both sides.

The yellow powder-coated finish provides corrosion resistance during storage and helps identify Knightsbridge tooling on site. The holesaw requires a separate arbor (HSARBORL, sold separately) to attach to a standard power drill or drill press. The variable TPI tooth pattern balances cutting speed in softer materials like plywood against durability in harder metals.

Specification
Diameter 32 mm
Recessed Depth 38 mm
Cut-out Diameter 32 mm
Construction Steel
Finish Yellow
Warranty 0
Downloads

Product Specification Sheet

Frequently Asked

What arbor does this holesaw need?

This holesaw requires the Knightsbridge HSARBORL arbor (sold separately) to mount onto a power drill. The arbor includes the pilot drill bit and the threaded attachment that holds the holesaw securely during cutting.

What materials can it cut?

The bi-metal construction handles steel, stainless steel, die-cast metals, hardwood floors, plywood and rigid plastics. The 4/6 TPI variable tooth pattern provides a balance between cutting speed in softer materials and durability in harder metals.

How deep can it cut in a single pass?

The 38mm cutting depth handles most wall thicknesses, electrical back boxes and worktop installations in a single pass. For thicker materials exceeding 38mm, you would need to drill from both sides or use a holesaw with greater depth.

Is this suitable for cutting socket back box holes?

Yes. The 32mm diameter matches the standard cut-out for many electrical socket boxes, downlight housings and cable access grommets used in UK residential and commercial electrical installation work.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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    Description

    The Knightsbridge 32mm bi-metal holesaw is a cylindrical cutting tool with variable 4/6 teeth per inch (TPI) designed to drill clean circular holes through steel, stainless steel, die-cast metals, hardwood flooring, plywood and rigid plastics. The 32mm diameter matches the standard cut-out requirement for many electrical socket boxes, downlight housings and cable access grommets in commercial and residential installation work.

    The bi-metal construction combines a high-speed steel cutting edge welded onto a flexible spring steel body, allowing the holesaw to withstand the heat and torque generated when cutting through harder materials like stainless steel or mild steel plate without the teeth fracturing. The 38mm cutting depth handles most standard wall thicknesses, electrical back boxes and worktop installations in a single pass without needing to drill from both sides.

    The yellow powder-coated finish provides corrosion resistance during storage and helps identify Knightsbridge tooling on site. The holesaw requires a separate arbor (HSARBORL, sold separately) to attach to a standard power drill or drill press. The variable TPI tooth pattern balances cutting speed in softer materials like plywood against durability in harder metals.

    Specification
    Diameter 32 mm
    Recessed Depth 38 mm
    Cut-out Diameter 32 mm
    Construction Steel
    Finish Yellow
    Warranty 0
    Downloads

    Product Specification Sheet

    Frequently Asked

    What arbor does this holesaw need?

    This holesaw requires the Knightsbridge HSARBORL arbor (sold separately) to mount onto a power drill. The arbor includes the pilot drill bit and the threaded attachment that holds the holesaw securely during cutting.

    What materials can it cut?

    The bi-metal construction handles steel, stainless steel, die-cast metals, hardwood floors, plywood and rigid plastics. The 4/6 TPI variable tooth pattern provides a balance between cutting speed in softer materials and durability in harder metals.

    How deep can it cut in a single pass?

    The 38mm cutting depth handles most wall thicknesses, electrical back boxes and worktop installations in a single pass. For thicker materials exceeding 38mm, you would need to drill from both sides or use a holesaw with greater depth.

    Is this suitable for cutting socket back box holes?

    Yes. The 32mm diameter matches the standard cut-out for many electrical socket boxes, downlight housings and cable access grommets used in UK residential and commercial electrical installation work.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.