JM Performance Products Inc.'s toolholder test can be used to determine if manufacturing problems are a result of a machine issue or a tooling issue. If you have tools that are not running at their optimal level, give the test a try and let the company know your results.

Follow these six steps to determine the origin of the problem:

1. Touch off the tool in question and write down the tool tip reference position.

2. Remove the tool from the spindle and loosen the retention knob.

3. Retighten the retention knob, this time only finger tight, do not torque the knob.

4. Reload the toolholder in the machine.

5. Touch off the tool again and write down the tool tip reference position.

6. Compare the readings. If the numbers are different, the difference is the distance the toolholder stops short of full engagement with the spindle. If the numbers are the same, the toolholder is properly engaged with the spindle. Retighten the retention knob; no other adjustments need to be made.

If tooling is the issue, High Torque Retention Knobs are the solution, according to the company.

The retention knobs ensure full engagement of the toolholder in the spindle.

Benefits:

• Increase productivity 10-30 percent

• Reduce chatter and harmonics

• Reduce setup times

• Increase spindle life

• Improve finishes

• Reduce runout