Sutton H125 32mm Bi-Metal Cobalt M42 Holesaw

The Sutton H125 is a 32mm holesaw made from bi-metal cobalt HSS, built for machine or hand drilling in steel, stainless steel, cast iron, non-ferrous metals, plastic and wood to a depth of 32mm. The 32mm size is the standard knockout for many pipe and cable entries, and it is a busy size for electricians and plumbers. The listing places it on the UA2 or QFX arbor with a BD24 or BD26 pilot.

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: 32mm (1.1/4 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

• Conduit and cable holes through steel and timber
• Plumbing pipe penetrations
• Electrical panel and enclosure work
• Vent and grille holes in panels
• General fabrication and maintenance

What You Need To Complete The Job

Run this 32mm saw on a Sutton quick fit arbor with a BD26 pilot drill. Keep a cutting lubricant on metal cuts. When the job is concrete or brick, switch to an SDS masonry drill. The rest of your kit is in the Carpentry Tools range.

Frequently Asked Questions

What is a 32mm holesaw used for?

A 32mm holesaw is the standard size for 25mm conduit and cable entries through steel panels, and for small pipe penetrations through timber and plastic. It is one of the most common holesaws in electrical work, sitting between the 25mm and 35mm steps.

How do I drill a clean hole in thin sheet steel?

Use a sharp pilot so the saw starts on the mark, run at a moderate speed, and keep light, even pressure so the sheet does not deform. Cutting from the finished side and easing off as the teeth break through gives the cleanest edge.

Can I cut stainless steel with the 32mm size?

Yes, stainless is on the listed range. It is harder on the teeth, so run slower, use a lubricant and keep the feed steady. The cobalt in the bi-metal HSS is there specifically to help the edge hold up on the harder metals.

Do I need to buy a separate pilot for this saw?

The pilot drill is not included with the saw. The BD24 or BD26 6.35mm HSS pilot is the listed match, and it fits the arbor you use with this size. If you run several H125 sizes, the same pilot and arbor serve the whole set.