How much runout/wobble should a T 18 have?

rjh

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Sep 4, 2016
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Just go a T 18. Pretty impressed... but....
I've had a hard time getting bits to rotate straight in the centrotec chuck. The jacob's chuck has almost no perceptible wobble but the centrotec is rather disappointing (better than most but only slightly better than my previous Panasonic drill). I've tried the included festool bit extender and a snappy centrotec square drive bit (part of the cabinet makers set) and see between a 32nd and a 64th worth of slop. I expected more from the centrotec design.... What should I reasonably expect?
 
My experience with my T18 is similar. Almost zero runout with the Jacobs. I view the Centrotec as being useful for quick bit changes and adequate for 95% of the work I do. All my high precision drilling is drill press work.
 
My Ti 15, T15 and CXS near zero runout on Jacobs and Centrotec. Had to return two them for exchange to get to te zero runout but am happy with them. At Festool prices significant runout is not acceptable to me.

Jack
 
Claimdude said:
My Ti 15, T15 and CXS near zero runout on Jacobs and Centrotec. Had to return two them for exchange to get to te zero runout but am happy with them. At Festool prices significant runout is not acceptable to me.

Jack
Do you mean that the runout on the centrotec is imperceptible to the naked eye? Any approximate numbers?
Perhaps I could just get the dealer to send me a new centrotec chuck... If the Jacob's chuck is good maybe its just something wrong with the centrotec chuck...
 
I mean barely perceptible with the naked eye. Zero runout (relatively) when compared to my 18 brushless Makitas.

Jack

rjh said:
Claimdude said:
My Ti 15, T15 and CXS near zero runout on Jacobs and Centrotec. Had to return two them for exchange to get to te zero runout but am happy with them. At Festool prices significant runout is not acceptable to me.

Jack
Do you mean that the runout on the centrotec is imperceptible to the naked eye? Any approximate numbers?
Perhaps I could just get the dealer to send me a new centrotec chuck... If the Jacob's chuck is good maybe its just something wrong with the centrotec chuck...
 
If you have runout at the bare spindle you should get the tool replaced.

There should be little or no runout on a precision round shaft in the chuck.

Since you can't put a round shaft in the Centrotec chuck your perception of runout is highly depended on the bit in addition to whatever runout is present in the Centrotec itself. To test the Centrotec you should use the largest diameter Centrotec drill bit you have (since it is less likely to be bent). Test that drill bit in the regular chuck first. If runout is acceptable there then test in the Centrotec.

If only the Centrotec chuck is a problem try another one. A good Centrotec chuck has significantly less runout than any other quick-change 1/4" hex chuck.
 
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