When you’re choosing holesaws and arbors, start with the material and the number of cuts you need to make. Bi-metal usually covers general metal and timber work, while diamond or tile versions suit surfaces that can’t chip or glaze. Check the arbor as well. A loose fit or the wrong pilot drill is where you lose time and end up swapping parts on the job.
Dart Tools A1 Arbor - 14mm - 30mm
Arbor for holesaws 14-30mm with 9.5mm hex shank and pilot drill
Knightsbridge A4 Size Arbor with Pilot Drill Bit, Hex Shank
A4 arbor with 6.3mm pilot drill bit and 9.5mm hex shank
Armeg Carbide Tipped Holesaw - 20mm
Carbide tipped holesaw for stainless steel, 20mm diameter, includes ejector spri…
Knightsbridge Arbor Drill Bits - 6.35mm x 75mm 5 Pack
Pack of 5 arbor drill bits, 6.35 mm x 75 mm, for Knightsbridge holesaw arbors
M3 Bi-Metal Hole Saw - 51mm
51mm bi-metal hole saw with high-speed cutting and variable tooth design
ROKTOR Bi-Metal HSS Multi-Material Holesaw - 127mm
ROKTOR 127-millimetre bi-metal HSS multi-material holesaw
Bosch Progressor Holesaw - 35mm
35mm Bosch Progressor bi-metal holesaw with 8% cobalt alloy and 44mm working len…
Dart Premium DPH Bi-Metal 8% Cobalt Metal Holesaw Drill Cutter Saw - 30mm
30mm bi-metal cobalt holesaw for metal cutting
C.k Tools Sheet Steel Hole Saw - 3 Piece Set
Sheet steel hole saw set with 3 pieces for electricians
Your Esssentials M3 Bi-Metal Holesaw - 83mm (3 1/4") 38mm depth Variable tooth
Bi-metal holesaw 83mm diameter, 38mm depth, variable tooth, fits most power tool…
The first question is what you’re cutting and how many holes you’ve got to do. For a one-off or a short run, holesaws and arbors with a decent pilot and a solid lock-up are usually enough. On repeat work, the arbor and saw fit matters more, because a sloppy drive wastes time and chews the teeth. If the job shifts from timber to sheet metal or tile, that’s where the spec changes, not the size on the box. More call-backs come from the wrong cutter than from the wrong drill.
A fixed holesaw arbor suits the odd one-off size. There’s less to assemble, so you get on with the cut. The trade-off is flexibility.
Separate holesaw arbors make more sense when you’re running different diameters through the day. Keep the holder, swap the saw, and move on. Holesaw drill bits are the cleaner option when you want the lot matched. You lose some choice if the job changes.
Power Tool Accessories is the parent range if you’re building the rest of the kit.
Start with what you’re cutting and how clean the finish needs to be. A wood holesaw suits timber and sheet goods when speed matters. A bi-metal holesaw is the usual pick for mixed materials or light metal. It lasts better, but it won’t always cut as freely.
Tile and diamond versions are the ones to use when the face has to stay intact. They cut slower and give you less room for error. If you’re only carrying one setup, check the holesaw arbors as well. A poor fit is what usually causes wobble and call-backs. If you’re also picking up finishing gear, Multi Tool Accessories and PT Sanding Accessories are the usual next stops.
Once you’ve picked the holesaws and arbors, the next question is what else is going into the same opening or finish. On plenty of jobs, the surrounding panel, screen, storage or waste detail decides whether you need a cleaner cut or a different size altogether.
If the hole is for a waste, accessory or service point, get the saw and arbor matched before you start. That’s where holesaws and arbors earn their keep. They save you from forcing the wrong size and opening it up later.



















