Handles for Allway Blade

I bought an Allway Tape Knife (http://allwaytools.com/product/8-blue-steel-tape-knife-wsolid-handle-rubber-grip-1cd-tk8/) and ground the edge to a razor with my dremel. Problem was that the handle on the blade was too big and prevented me from laying it flat (which made it dig into and rip the tape on the build bed).
I removed the handle but found that it was difficult to manuver the blade without any leverage and became somewhat hot after being on the heated bed for a couple of seconds.
So