Sutton H125 29mm Bi-Metal Cobalt M42 Holesaw

The Sutton H125 is a 29mm holesaw made from bi-metal cobalt HSS for a hard edge and a long working life. It cuts to 32mm deep and is listed for machine or hand drilling in steel, stainless steel, cast iron, non-ferrous metals, plastic and wood. At 29mm the saw steps up to the larger arbor class, listed for the UA3 or QFX arbor with a BD24 or BD26 pilot, which gives the bigger diameter a steadier mount in the drill.

Key Features

• Bi-metal cobalt HSS for toughness and longer life
• 32mm cutting depth
• International thread standard accepts all standard arbors
• Listed for the UA3 or QFX arbor for a steadier mount
• Suits machine or hand held drilling
• Cuts steel, stainless steel, cast iron, non-ferrous metals, plastic and wood

Specifications

• Diameter: 29mm (1.1/8 inch)
• Model: H125, white label series
• Material: bi-metal cobalt HSS
• Cutting depth: 32mm
• Thread: international thread standard
• Arbor and pilot: UA3 or QFX arbor, BD24 or BD26 pilot drill

Applications

• Penetrations for cable, conduit and small pipe
• Holes in steel panels and enclosures
• Fan and ventilation fittings through cladding
• Timber, plywood and composite panels
• General fabrication and site work

What You Need To Complete The Job

Use a Sutton quick fit arbor with a BD26 pilot drill to hold the 29mm saw on the mark. In metal, run a cutting lubricant; in concrete or brick, switch to an SDS masonry drill. The rest of the cutting range is under Carpentry Tools.

Frequently Asked Questions

Why does this size use the bigger arbor class?

Once a holesaw gets past about 25mm, the rim has more tooth contact and pulls harder on the arbor. The UA3 or QFX arbor class gives the saw a stronger mount and better support in the drill, which keeps the cut round and stops the saw flexing on the start.

What is a 29mm holesaw used for?

A 29mm holesaw is used for cable and conduit penetrations that are too big for a 25mm knockout, for small pipe entries, and for fittings and vents that need a clean round hole through a panel. It sits between the common electrical sizes and the plumbing sizes.

How do I stop the saw grabbing on exit?

The teeth can catch as they break through the far side. Ease the feed pressure right down as the saw exits, keep the drill square to the work, and let the teeth cut through rather than pushing hard. A backing board behind thin sheet also gives a cleaner exit edge.

Will this saw cut aluminium cleanly?

Yes. Aluminium is one of the easier metals for a bi-metal saw. Run at a moderate speed with a light feed and the flutes clear the swarf. On softer alloys, a smear of wax or oil on the teeth stops them loading up and keeps the edge clean.