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Castle TSM -214/12
I recently upgraded from a kreg to a castle TSM 21 for the shop , we love the machine , but we seem to be breaking the pilot bit , maybe one a week . Is this common ? We tried adjusting the feed rate but no luck . It seems to be breaking in plywood not hardwood . So I bought a few of the bits that castle sells for plywood ? Maybe this will work .
I have had the 1/8” pilot bit pull out of the 1/4” “adapter”, but have never broken a bit. I would check the depth setting on the bit, your feed rate and then call Castle to see what they say.
Have never had a problem breaking them. BUT the machine is sensitive to adjustments. We just use common bits.
We used to break a lot of bits, found out that our prefinished plywood was the culprit. Had a goldply core of 5 plys of douglas fir with a huge center core. Was driving the drill bit at angles that put so much side pressure that they would break. Supplier finally stopped using that brand and our problems stopped. Dustin
Hmmm. Kinda like shoting nails into southern yellow pine. Poplar core ply would be better then. For the record i dont have a Castle I have a Kreg floor machine.
That's what they break in 2sided pre fin maple , and it had fir core , though we just tried a unit of this new 3/4" pre fin that has a skin of Mdf on each side with a poplar core .
If you start using the machine before you have enough air pressure you will break a bits. Also If you go too fast you could be moving the wood out while the bit is still in place. I think that doing these things can fracture a bit and then it breaks during normal cycles