Ah. $12.66 + $13.97 shipping will get me an MT3 B18 arbor. Should I or shouldn't I...
Done. Should be here Saturday.Here found cheaper one - https://www.amazon.ca/Othmro-Lathe-Extension-Drill-Arbors/dp/B081ZWZ7ZN/ref=sr_1_9?crid=30CDTDW2NMVDU&keywords=MT3+B18&qid=1659492273&sprefix=mt3+b18+,aps,223&sr=8-9
One day delivery for $22 CAD!
MT3-B18 Drill Chuck Arbor, Morse Taper Shap Holder Connector Rod with Tang End Self Tightening Toolholding Connecting Adapter for 6JT Drilling : Amazon.ca: Tools & Home Improvement
MT3-B18 Drill Chuck Arbor, Morse Taper Shap Holder Connector Rod with Tang End Self Tightening Toolholding Connecting Adapter for 6JT Drilling : Amazon.ca: Tools & Home Improvementwww.amazon.ca
Not sure that rebuild stuff would fit though on a no name chuck.Rebuild kits for Jacobs chucks are expensive even on auction.
Expensive == like $50 for rebuild kit for 1/2 in chuck
More then $50 for 3/4 ball bearing chuck.
Essentially once rebuild some old beaten up chuck ===> brand new Jacobs chuck.
Not sure that rebuild stuff would fit though on a no name chuck.
Awesome!
I just switched from a Jacobs style chuck to a keyless one and am impressed. Reason for the switch was simple, chuck came off the jacob taper R8 shank and did damage to it (first time this has ever happened to me, I suspect it was the heat transfer from drilling to break it free).
Replace the arbor with new but added a new chuck, good to have backup just in case.
Well that may be, but the good chuck require mounting. The idea of heat and cooling to mount is actually very good and sound. However heat buildup in the chuck will counter that for the same reason and methodology.If you are going to drill hard you may consider freezing the jacob taper and heating the chuck (or reverse). The mating is a bit ... harder to break (or near impossible).
There are chucks out there with integrated MT shank.
Keyless has its uses - it is nice for casual drilling. It is a chuck that not only hand tightens but also self tightens when the drill starts to slip. Main issues are:
- need a spanner wrench when chuck over tightens - so you are not free of "key"
- cannot reverse drill or reverse a tap etc. As self tightening feature becomes self loosening
- a bit more travel time is needed to change from one size to another.
Note that keyless has been around just few years less then Jacobs. Both are over 100 year old designs.