Mounted Points vs Carbide Burrs: Which Should You Use for Deburring Metal?

A burr on the edge of a steel part, an awkward weld inside a fabrication and a casting that needs shaping can all call for a shank-mounted tool. Two common choices are mounted grinding points and tungsten carbide burrs. They can reach areas that a larger grinding disc cannot, but they remove material in different ways.

The simplest starting point is the result you need. A carbide burr is often the choice for cutting away material and shaping a part. A mounted point is useful when you want to grind, dress or refine a surface with an abrasive. There is overlap between the two, so the material, access and required finish also matter.

What is the difference?

A mounted point is a shaped abrasive head fixed to a shank. Abrasive grain grinds the workpiece as the point rotates. Mounted points come in different shapes, sizes and abrasive specifications for work such as deburring, weld dressing, edge preparation and grinding inside bores or along contours.

A carbide burr is a cutting tool with teeth formed into its head. Its cut, shape and size determine how it removes material. Carbide burrs are commonly used for deburring, profiling, weld removal and shaping metal.

Both are used with a compatible straight grinder or flexible shaft. Always check the shank fit and the manufacturer’s speed guidance for the specific tool.

When should you choose a carbide burr?

Consider a carbide burr when the main job is removing material or changing a shape. Examples include opening up an area, working down a weld, removing a substantial burr or shaping an edge before a later finishing step.

The cut matters as much as the burr’s shape. A burr intended for aluminium, for example, has a different cutting geometry from one selected for steel or stainless steel. Choose a burr specified for your material and the amount of stock you need to remove.

Browse our tungsten carbide burrs if your first priority is controlled cutting and material removal.

When should you choose a mounted point?

Consider a mounted point when the job calls for grinding or dressing a small area. It can be a practical choice for refining a weld, removing a smaller burr, preparing an edge or working on a bore or contour where a larger abrasive cannot reach.

Choose the abrasive range to suit the workpiece. Our PFERD mounted points include ranges for steel, stainless steel, cast iron and aluminium, as well as TOUGH points for demanding materials such as titanium, nickel alloys and hardened steel. The point’s shape, dimensions and abrasive grade then help you match it to the area and finish required.

Which gives the better finish?

Neither tool has one fixed finish. A mounted point’s result depends on its abrasive specification and how it is used. A carbide burr’s result depends on its cut, the material and the working conditions; some burr cuts are intended for finer work.

For a job that involves substantial removal followed by surface refinement, you may use a carbide burr first and a mounted point afterwards. For a small grinding or dressing task, the mounted point may be all you need.

How to choose the right shape

Think about the surface the tool must contact, rather than choosing by head diameter alone:

• Cylindrical shapes can suit straight areas and accessible edges.

• Ball shapes can help with curved surfaces and contours.

• Tree and conical shapes can provide access to profiles, transitions and narrower areas.

The exact head dimensions still matter. Check that the tool will reach the work without the shank or grinder obstructing it, and select a shank diameter that fits your machine.

A quick way to decide

Ask these questions before ordering:

1. What material am I working on? Select a mounted point range or burr cut recommended for that material.

2. How much material must come off? A carbide burr is worth considering for significant cutting or shaping; a mounted point may suit a grinding or dressing operation.

3. What surface do I need afterwards? The required finish may determine the tool specification or whether a second operation is needed.

4. Can the tool reach the area safely? Check the head shape and size, shank fit and manufacturer’s operating speed.

If you are unsure, tell us the material, the area you need to reach, the amount you need to remove and the finish you want. We can help you narrow down the suitable options.

Explore our mounted points and tungsten carbide burrs, or browse the wider PFERD Tools range.