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4-1/2 inch masonry cutting wheel with metal hub, 3/32 inch thick, 7/8 inch arbor

Tuff Stuff

Tuff Stuff 45MAS 4-1/2" x 3/32" x 7/8" Arbor Masonry Cutting Wheel

SKU CH-KRFK-S1PVW

A 4-1/2 inch masonry cutting wheel with a metal hub, 7/8 inch arbor and 13,000 RPM maximum speed for angle grinders

  • Product typeCutting Wheels
  • Sold asEach
  • Cuts masonry cleanly with 3/32" thin kerf
  • Fits 4-1/2" angle grinders via 7/8" arbor
  • Metal hub adds rigidity for straight cuts
  • Runs safely up to 13,000 RPM on site

Tuff Stuff 45MAS Masonry Cutting Wheel

The Tuff Stuff 45MAS is a 4-1/2 inch masonry cutting wheel built with a metal hub for 7/8 inch arbor angle grinders. It serves tradespeople and DIY users who need a dedicated abrasive blade for cutting brick, block or concrete. Each unit is sold individually as a new accessory.

Thermals noise and power draw

Friction during cutting generates heat at the contact surface, so operators should allow cooling periods in extended use. The wheel itself has no motor, so it produces no electrical noise or power draw; all sound and energy come from the angle grinder driving it at up to 13,000 RPM.

How it compares

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

Price $1.28
Cheaper than about 99% of the 5,493 comparable items (median $27.99).

Specifications

Product
Product typeCutting Wheels

Questions about this item

How do I install the 45MAS cutting wheel on my angle grinder and what is the common mistake?

Mount the 7/8" arbor onto the grinder spindle, tighten the flange nut securely, and ensure the metal hub sits flush against the inner flange; the step often missed is verifying the wheel's 13,000 RPM maximum matches or exceeds the grinder's no-load speed.

What maintenance or replacement will the 45MAS masonry cutting wheel need over time?

The wheel wears down with use; inspect the 3/32" thickness regularly and replace the wheel once it becomes too thin to cut cleanly or shows cracks, chips, or excessive vibration during operation.

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