Foo - Difference between these calipers?

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phantomcow2
12-17-06, 04:50 PM
I am buying those Mitutoyo DM coolant proof calipers with the IP66 rating. Does anybody know what difference there is between these two?
http://cgi.ebay.com/Mitutoyo-6-DM-Caliper-IP66-Coolant-Proof-w-Abs-Encoder_W0QQitemZ150062881984QQihZ005QQcategoryZ25269QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://www.penntoolco.com/catalog/products/products.cfm?categoryID=5964

iamlucky13
12-17-06, 09:15 PM
They look like the same caliper to me.
phantomcow2
12-18-06, 05:01 AM
Except the buttons. One has two buttons, one has only one. Wondering if that means anything

Stacey
12-18-06, 05:16 AM
Twice as many things to push? :)
eubi
12-18-06, 06:04 AM
I can't see what that other button does, but I think I can guess...

Some have a zero feature, so you can set zero anywhere on the scale.

If it's important, be sure you get standard or metric. One of them (on ebaY) has both scales, the other only has metric (I thought 16.68 looked a bit off on that second one. I'm used to reading in inches!) Some calipers can switch, but the markings on the scale will be off. Maybe that's why the first on has two buttons...and two scales.

I personally prefer dial calipers. It's much easier for me to pre-set them to a specific measurement.

Hope this helps!
eubi
12-18-06, 06:20 AM
I was going to add...be sure you get a caliper that is at least 6" long. They have 4" shorties, but the end jams into your palm while you're trying to use them.

I think both of these are 6" models.