02-08-2020, 05:41 PM
(This post was last modified: 02-08-2020, 05:44 PM by Bill Schneider.)
While this happened to a mid-90s Craftsman drill press, I believe that some other brands use the same crank handle that broke. Perhaps this will be useful.
I had some work in a big, heavy vice that was sitting on the drill press table, and when I went to lift the table, the crank handle broke off in my hand. I couldn't believe that the handle was made of mostly plastic. From appearances, I thought it was a die cast metal of some sort, but I was wrong.
Looking around on the internet, this looked to be a common problem for a couple of different presses. Replacement cranks were plastic too - no thanks!
I considered other solutions and settled on an aluminum wheel crank from industrial supplier McMaster-Carr. The wheel had a smaller mounting hole than the shaft, but I could drill that out to fit. I also needed to drill and tap a side hole for a 1/4-28 set-screw to hold it onto a flat milled on the table lift shaft. The wheel itself was gorgeously made.
I created some soft jaws for my vice to hold the wheel without marring it. I drilled the through-hole larger to fit the 9/16" diameter drill-press shaft, then cross-drilled and tapped 1/4-28 threads for the set screw.
It works like a charm, and looks better too!
THAT'S not going to break off in my hand!
BTW, a replacement plastic crank was $30 online, but this metal wheel with crank was $50. It's well worth the extra money for the peace of mind.
I had some work in a big, heavy vice that was sitting on the drill press table, and when I went to lift the table, the crank handle broke off in my hand. I couldn't believe that the handle was made of mostly plastic. From appearances, I thought it was a die cast metal of some sort, but I was wrong.
Looking around on the internet, this looked to be a common problem for a couple of different presses. Replacement cranks were plastic too - no thanks!
I considered other solutions and settled on an aluminum wheel crank from industrial supplier McMaster-Carr. The wheel had a smaller mounting hole than the shaft, but I could drill that out to fit. I also needed to drill and tap a side hole for a 1/4-28 set-screw to hold it onto a flat milled on the table lift shaft. The wheel itself was gorgeously made.
I created some soft jaws for my vice to hold the wheel without marring it. I drilled the through-hole larger to fit the 9/16" diameter drill-press shaft, then cross-drilled and tapped 1/4-28 threads for the set screw.
It works like a charm, and looks better too!
THAT'S not going to break off in my hand!
BTW, a replacement plastic crank was $30 online, but this metal wheel with crank was $50. It's well worth the extra money for the peace of mind.
Bill Schneider