I recently upgraded my mortiser (Delta benchtop to Jet), but the shanks on the chisels I used on the Delta are too short for the Jet. I bought a basic set (around $30 for 5 - they're cheap and nasty, but they'll probably get me through the job I'm doing at the moment), but for the long-term, I would prefer something that doesn't clog and ignite the wood. Any recommendations?