Spindle Runout Testbar CAT - BT - DIN For Precision Alignments

CAT / BT / DIN Spindle Test Bar Runout Arbor Steep Taper

The largest causes of excessive tool wear and tool breakage are machine tool spindle runout and excessive slop or axial play. The spindle runout test bar can be used to test your CNC machine tools for precise accuracy and proper alignments. Test bars ensure a stable production environment and consistency when moving jobs from one machine to another.

Spindle Runout Testbars are easy to use and they fast way to verify your machine spindle is running properly. Check them after a machine has been crashed and take the proper steps to prevent unintentionally making scrap parts.

CAT /  BT / DIN Testbar Tolerance and Accuracy

• CAT or ANSI are 10 micron or better
• BT are 0.003mm (3 micron) or 0.0001in. or better.
• Steel taper testbar arbors include certificates.

Retention knobs are not included. (use one from your machine, as they differ from one machine to the other.)

Optional Test Bar Wood Storage Case
(fit to size) available. $125.00
(Part Number: K7500-S1)

Need a different machine taper test bar?  Call us at 414-881-4493

Click below to see all available tapers.
Can't find the right size spindle taper test bar? Contact us.

Runout Test Bars are available for all major machine tapers

• CAT 40 / CAT 50 / BT30 / BT40 / BT50 / DIN30 / DIN40 / DIN45 / DIN50 / DIN60 Testbar
• HSK-A/C/E A63 / HSKF63 / HSKA50 / HSK A100/C100 Testbar
• Capto Testbar
• KM 63 Testbar
• Morse Taper  MT1 / MT2 / MT3 / MT4 / MT5 / MT6 testbar
• R8 Testbar
• Straight Runout / A2 Chuck runout
• Lathe Turret Alignment / VDI Testbars