Grinding Tools For Circular Saw Blades Face Grinding Wheel 125x21 3x3mm

When a circular saw blade starts cutting slow or burning the wood, the face of the teeth is often uneven. A worn or loaded face grinding wheel leaves tooth faces that are not flat, so the blade tracks poorly and the cut finish drops.

This is a face grinding wheel for circular saw blades, 125mm outside diameter, 21mm inner hole, in the 125x21-3x3 size. It fits saw-sharpening setups that take a 125mm wheel on a 21mm arbor. Confirm fit by measuring your grinder spindle diameter and the space around the wheel before you order.

Mount the wheel on the 21mm arbor and check it sits square against the flange. A wheel that does not seat flat will grind a taper across the tooth face. With the wheel running true, each pass cuts an even face on the tooth, which keeps the saw cutting straight and reduces the stock you remove per sharpen.

Two wheels come in each box, so you have a spare when one is worn. Other sizes are available; contact for details. When you enquire, send your grinder make and model, the arbor diameter, and the wheel size you run now. That lets us match the 125x21-3x3 or point you to another size.

What the specification fixes, and what it leaves to the machine:

• Tooth face grinding — The wheel grinds the face of circular saw blade teeth, restoring a flat face after repeated sharpening cycles.
• Arbor fit check — A 21mm inner hole means you verify your grinder spindle diameter before mounting the wheel.
• Outer diameter — At 125mm outside diameter, the wheel suits sharpeners set up to take a 125mm face grinding wheel.
• Wheel-to-flange seating — Seat the wheel flat on the 21mm arbor flange so each pass grinds an even face across the tooth.
• Wear point — The face of the wheel wears as it grinds, so keep a spare from the 2pcs per box supply.
• Size confirmation — The 125x21-3x3 size must match your machine's arbor and clearance; measure before ordering.
• Spare on hand — Two wheels per box let you keep sharpening when one wheel is worn or loaded.
• Other sizes — Other sizes are available on request, so send your current wheel dimensions with your enquiry.
• Mounting check — Check the wheel sits square on the arbor before running; a tilted wheel grinds a taper.
• Saw sharpening use — Use this face wheel in circular saw grinding setups where a 125mm wheel with 21mm bore is specified.

What changes on the shop floor when the right part goes back in:

• Restores a flat tooth face. An uneven tooth face makes the blade cut slow and burn wood. A fresh face wheel grinds each tooth flat again, so the saw tracks straight through the cut.
• Fits a known arbor size. The 21mm inner hole matches grinders that take a 21mm spindle. Measure your spindle first, then order the 125x21-3x3 with confidence instead of guessing.
• Keeps a spare in the box. Two wheels ship per box, so a worn wheel does not stop the sharpening bench. You swap in the spare and keep working through the batch.
• Even stock removal. A wheel that seats square on the 21mm arbor grinds an even face. That means less stock comes off each tooth per sharpen, so blades last more sharpening cycles.
• Simple fitment check. Before ordering, measure the grinder spindle and the space around the wheel. If both match 125mm and 21mm, the wheel mounts without modification.
• Other sizes on request. If your sharpener runs a different wheel size, other sizes are available. Send your current dimensions and we match the wheel to your machine.

Check your grinder's spindle diameter and wheel clearance. The wheel has a 21mm inner hole and 125mm outer diameter, so it fits machines that take a 125mm wheel on a 21mm arbor. Measure both before ordering.

The size gives the wheel dimensions: 125mm outer diameter and 21mm inner hole. Match these to your grinder's arbor and clearance. If your machine uses a different size, other sizes are available.

Two wheels come in each box. That gives you a spare when one wheel is worn or loaded, so sharpening does not stop mid-batch.

Send your grinder make and model, the arbor diameter, and the wheel size you run now. With those details we can confirm the 125x21-3x3 or point you to another available size.

Yes, other sizes are available. Contact us with the dimensions you need, and we will confirm what is available for your sharpening setup.

Mount it on the 21mm arbor and check it sits square against the flange. A wheel that does not seat flat will grind a taper across the tooth face, so check seating before running.

It grinds the face of circular saw blade teeth. Use it in saw-sharpening setups where a 125mm face grinding wheel with a 21mm bore is specified.

An uneven tooth face makes the blade cut slow and burn the wood. Grinding the face flat with this wheel helps the blade track straight and keeps the cut finish consistent.