How to Adjust (Regular Type)

If there is any issue using this product, refer to the methods described below.

If Burrs Remain

If burrs remain, try the following adjustments even if the burr thickness is below 0.2 mm and the recommended depth of cut is used.

▮ Rotational Speed
Increase the rotational speed to the maximum.

▮ Rotational Direction
For horizontal burrs, the Brush should be applied in a way that it pushes burrs upward and up cut (climb) milling ensures this.

▮ Brush Color (Grinding Power)
Grinding power: A32 (Blue) > A21 (White) > A11 (Red) > A13 (Pink)
Make sure to select appropriate Brush color based on the workpiece material and burr thickness.

If the Edge Rounding is Excessive

The Brush cannot remove burrs without rounding edges to some extent.
You can reduce excessive rounding by making the following adjustments.

▮ Increase the Feed Rate
Increase the feed rate in 1,000 mm/min increments while making sure that burrs are removed.
It is also possible to reduce the cycle time by increasing the feed rate.

Reduce the Rotational Speed
Reduce the rotational speed in 10 - 20 % increments while making sure that burrs are removed.

Select a Different Brush Color (Grinding Power)
Effectiveness for reducing excessive edge rounding: A13 (Pink) > A11 (Red) > A21 (White) > A32 (Blue)
It may be possible to reduce excessive edge rounding by selecting a different Brush color.

To Improve the Surface Finish

It may be possible to improve surface finish by making following adjustments.

Select a Different Brush Color (Grinding Power)
Surface finish: A13 (Pink) > A11 (Red) > A21 (White) > A32 (Blue)
Select the appropriate Brush color based on the workpiece material and desired surface roughness.

To Improve Surface Roughness

It may be possible to improve surface finish by making following adjustments.

Select a Different Brush Color (Grinding Power)
Achievable surface roughness: A13 (Pink) > A11 (Red) > A21 (White) > A32 (Blue)
Select the appropriate Brush color based on the workpiece material and desired surface roughness.

Wet Machining
The Brush can be used with or without cutting coolant (oil-based and water-soluble), and using coolant may improve surface roughness.

- Increase the Number of Passes
For the same cycle time, increasing the number of passes is more effective than decreasing the feed rate for improving surface roughness.

To Extend Tool Life

Try making adjustments listed below if the tool life is short even if the burr thickness is below 0.2 mm.

Increase the Feed Rate
Increase the feed rate in 1,000 mm/min increments while making sure that burrs are removed.

Reduce the Rotational Speed
Reduce the rotational speed in 10 - 20 % increments while making sure that burrs are removed.


Reference Data: Tool Life

Below are two examples of tool life measured under conditions shown

Workpiece material Die cast aluminum
Prior process Face milling
Burr thickness 0.1 mm
Cutting distance 1000 mm / workpiece
Tool A11-CB25M
Rotational Speed 4000 min-1
Feed Rate 2400 mm/min
Depth of cut 1.0 mm
Brush length consumed 50 mm out of 75 mm
Tool life 10,000 workpieces (cutting distance 10km)
Workpiece material Carbon Steel (JIS S45C)
Prior process End milling
Burr thickness 0.1 mm
Cutting distance 200 mm / workpiece
Tool A21-CB25M
Rotational Speed 4000 min-1
Feed Rate 2000 mm/min
Depth of cut 0.5 mm
Brush length consumed 50 mm out of 75 mm
Tool life 15,000 workpieces (cutting distance 3 km)

Tool life varies significantly depending on the workpiece material and machining parameters. The above data is a guide and tool life is not guaranteed.