Sutton H125 40mm Bi-Metal Cobalt M42 Holesaw

The Sutton H125 is a 40mm holesaw made from bi-metal cobalt HSS, sized for clean round holes in steel, stainless steel, cast iron, non-ferrous metals, plastic and wood to a depth of 32mm. It is a trade and industrial quality saw that runs in a machine or hand held drill, and it sits on the UA2 or QFX arbor with a BD24 or BD26 pilot. The 40mm size is a busy one for pipe and conduit entries.

Key Features

• Bi-metal cobalt HSS for toughness and longer life
• 32mm cutting depth
• International thread standard accepts all standard arbors
• Listed for the UA2 or QFX arbor
• Suits machine or hand held drilling
• Cuts steel, stainless steel, cast iron, non-ferrous metals, plastic and wood

Specifications

• Diameter: 40mm (1.9/16 inch)
• Model: H125, white label series
• Material: bi-metal cobalt HSS
• Cutting depth: 32mm
• Thread: international thread standard
• Arbor and pilot: UA2 or QFX arbor, BD24 or BD26 pilot drill

Applications

• Plumbing pipe penetrations through floors and cabinets
• Conduit and cable entries through steel
• Vent and grille holes in panels
• Downlight and fitting holes in timber
• General fabrication and maintenance

What You Need To Complete The Job

Run this 40mm saw on a Sutton quick fit arbor with a BD26 pilot drill. In metal, use a cutting lubricant; for masonry, change to an SDS masonry drill. The rest of your kit is in the Carpentry Tools range.

Frequently Asked Questions

What is a 40mm holesaw used for?

A 40mm holesaw is used for pipe and conduit entries around the 40mm mark, for cable penetrations, and for vent grilles and fittings that need a clean round hole. Plumbers and electricians use it for holes through timber floors, steel panels and cabinet work.

What speed should I use in steel?

Run a 40mm saw at a moderate speed, slower than a small bit, and keep the feed steady. If the saw chatters or the metal discolours, back off the pressure. A cutting lubricant keeps the bi-metal teeth cool and the cut smooth.

Do I need to back the saw out to clear swarf?

On deeper cuts, yes. Lift the saw out part way now and again so the flutes can clear the swarf, and ease the pressure as the saw nears the far side. Keeping the cut clear stops the teeth clogging and gives a cleaner hole.

Can I cut through plasterboard and timber with this saw?

Yes. It cuts plasterboard, plywood and timber quickly and cleanly, which makes it a good all rounder for site work where you move between metal and wood in the one day. Use a slower feed in timber so the rim does not snatch.