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Silver bi-metal hole saw cylinder with toothed edge, attached mandrel and pilot drill bit

RICHELIEU

RICHELIEU 961131 48 mm bi-metal hole saw with mandrel and pilot

SKU CH-C7FS-BK22P

Cuts metal, plastic and wood with M3 high-speed steel teeth, variable 4/6 pitch and an EZE slot for easy plug removal, supplied with mandrel and pilot drill

  • Bi-metal construction resists breakage during heavy-duty cutting
  • M3 high-speed steel teeth stay sharp through repeated use
  • 4/6 variable tooth pitch cuts metal, plastic and wood efficiently
  • EZE slot allows quick plug removal on 45 mm and larger diameters
  • Includes mandrel and pilot drill for immediate setup

48 mm bi-metal hole saw

The RICHELIEU 961131 is a 48 mm bi-metal hole saw supplied with a screw-in mandrel and pilot drill. It is designed for electricians, plumbers and maintenance technicians who need to cut clean holes in metal, plastic and wood. The heavy-duty backing plate adds rigidity during demanding drilling tasks.

EZE Slot plug removal

The EZE Slot feature allows quick plug ejection on blades of 45 mm diameter and larger, reducing downtime when clearing material. M3 high-speed steel teeth are electron beam welded to the blade body for consistent hardness and long service life. A 4/6 variable tooth pitch promotes efficient and safe cutting across different materials.

California Proposition 65 notice

This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Users should follow standard workshop safety practices such as wearing respiratory protection and ensuring adequate ventilation. The mandrel and pilot drill are included so the saw is ready for immediate use.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 86% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameRICHELIEU

Questions about this item

How do I attach the mandrel and pilot drill to the 48 mm hole saw, and what step is often missed?

Screw the supplied mandrel into the hole saw's threaded back until the pilot drill seats firmly; the step often missed is tightening the mandrel's set screw against the saw body so the saw cannot spin loose.

What part will need replacement first when cutting metal, plastic and wood with the 4/6 variable pitch teeth?

The M3 high-speed steel teeth dull before the heavy-duty backing plate wears, so the hole saw itself is the first consumable to replace.

At what diameter does the EZE Slot become available for plug removal on this saw?

The EZE Slot is designed for all blades 45 mm and larger, so the 48 mm saw includes the slot for quick plug ejection.

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