|Forum topic by RonInOhio||posted 06-06-2013 10:02 PM||1904 views||0 times favorited||2 replies|
06-06-2013 10:02 PM
Usually I can figure these things out either from an online search or manufactors directions.
This time I’m not satisfying myself that I’m positive, and I want to be positive before spinning
First of all I want to use a 1/4” straight bit to cut mortises. I have a Rotozip and know that Rotozip (Bosch) sells a three pack of router bits for this tool to fit the 1/4” collet. From the pics of that product the bits appear to be only about 1 1/2 long from tip to tip.
I have a 1/4” Diablo bit that is 1 3/4” long from tip to tip.
My understanding is at least 3/4” of the bit should be encased inside the collet. But that the bit should not be buried in the collet. Am I correct in assuming that this means not to slide the bit down so far that the bit cutting surfaces are inside the collet ? Duh, that seems reasonable. Or does it mean the bit should not extend all the through the collet. ?
Words are confusing so I inserted the some pics to show various depths the bit is inserted.
Could someone point out the correct depth for this router newbie ? Thanks alot.
^ Image A. Notice the collet is not slid down to the minimum mark on the bit. So this is not inserted far enough down the bit . Correct ?
^ Image A1 Here the collet is slid down to just past the minimum mark. But the bit shaft is protruding out the both ends of the collet. Is this what is known as burying the bit in the collet ? Or is this a correct insertion depth ?
^ Image B Here I didn’t slide the collet all the way down to the minimum line on the bit. Is there suppose to be
^ Image C And here the bit is slid through the end of the collet so as the other end is at or near the minimum mark.
Is it possible I need a bit that is a little shorter ? Feel a little foolish . But would rather feel foolish than to work unsafe. So maybe this is a specialty bit I have to order the Bosch 3 bit set for the Rotozip ?