If you are tapping a small endmill, 8mm or 3/8", and keep getting the message to hit harder, you can lower the threshold in one of two ways. Click on Practice and tap very lightly. If this does not work you can lower the threshold manually.
1. Click the Setup button
2. Click the Sensors tab
3. Change the Trigger Threshold value from 160 to 80 mV.
4. Click Apply
5. Click OK. Now redo "Practice" and tap the tool. When finished tapping, be sure to change the Trigger Threshold back to 160, click apply and OK.