On Mon, 01 Mar 2010 10:03:24 -0800, David Nebenzahl
wrote:

On 2/27/2010 5:41 AM spake thus:

On Fri, 26 Feb 2010 18:54:25 -0800, David Nebenzahl
wrote:

On 2/26/2010 3:43 PM -MIKE- spake thus:

On 2/26/10 5:03 PM, notbob wrote:

On 2010-02-26, wrote:

I've had mine for about a year and it's saved me a ton of time, but:
Unless you really torque it, the blades tend to vibrate loose.

I thought this was THE major problem with the HF units and made them no
bargain. Has someone figured out a solution or are they OK if used
only in the occassional home DIY environment?

I've never experience them coming loose.

Apparently the old "multifunction tool" (the one I got for $35
recently) has this problem. After looking at the mounting system
for the cutting tools, I can see why: there are 4 little nubs on
the mounting plate that could easily get worn down.

As the nubs go into holes in the attached blade, how are they going to
"wear down", unless you mount the bald incorrectly? Do you expect a
problem with keys in keyways wearing down?

Easy; since the "spindle" with the nubs is diecast,

It's not!

and the blades are
steel, the edge of the blades could easily wear into the fairly small
nubs. In fact, I seem to remember this very problem being reported here
(or was it on alt.home.repair?) for this tool.

I guess if it were me designing the thing, I would have bored holes in
the spindle and press-fitted steel pins there.


Well surprise, surprise, surprise! I just got home and looked at my
Harbor Freight Multi-tool (to be SURE before I posted a wild guess,
like you did). Guess what! They used your design!!!

The nubs are hardened steel pins set in holes in the spindle.