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300 mm "Digital Verniers"

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Manxmodder:
Andrew, all my digital calipers and mics are Insize brand from Cutwel Tools.

I have an 1108 series 6" that has withstood 3 years hard usage,and also the more expensive model with carbide faced jaws.

The standard 1108 is their best seller caliper and I find them very dependable and accurate.

Copied the link for you,the 300mm version is down the page a bit.

Hope this helps ....OZ.   http://www.cutwel.co.uk/measuring-tools/small-tool-instruments/calipers/insize-digital-caliper-1108-series-1

Pete.:

--- Quote from: John Stevenson on July 16, 2016, 05:41:17 PM ---You want SR 44's and not LR44's
It was explained to me over in China what the difference is but I have forgot. Something like LR's at 1.4v and SR's are 1.5 volt or something alaong those lines and the last bit matters [ as always ]  :med:

--- End quote ---

Handy Info John. I just checked my calipers and both have LR44, also my digital mic has LR44 and another spare in the box, but I will order the SR44 replacements when I need more batteries.

PekkaNF:
RE: Opening post.

I have used limited amount of larger than standard digital caliper, however I have used somewhat larger traditional calipers and two things comes to my mind:

1) There seems to be two types, other one has long enough jaws to measure round objects outside. Great, if you need to do that, but jaws get rather long after 500 mm models, requiring stronger/stiffer/heavier structure AND less play = more expensive. I prefer shorter jaw model, that has square jaws.

2) Play is larger factor on with verniers generally.... I have found that pressing the jaws together near the measurement point with "calibrated" finger force produces more constat mesures, and this seems to me more important more there is play.

Not sure how aplicable this is to 300 model as I don't own one and the stuff at the work is much bigger.

Pekka

AdeV:

--- Quote from: awemawson on July 16, 2016, 03:21:38 PM ---Certainly want auto power off as coming to a flat battery is a pain

--- End quote ---

How about one of these chaps?

http://www.ebay.co.uk/itm/300mm-Metric-Machine-DRO-Dial-Caliper-Yellow-4Way-Measurement-Stainless-Steel-/390832812254?hash=item5aff7370de:g:TFQAAOSwiLdV~BBD

No battery problems... and £45 seems quite reasonable.

I presume they are available in English measures as well as the French one pictured...

Jasonb:
My 6" are Mitutoyo and battery lasts for years as they do not remember last setting they are off when switched off.

I have a 12" one from Machine DRO as I originally needed it for the gears on my traction engine. Does not feel anywhere near as nice to use as the 6" but not had any problems with accuracy. Battery will run down if left fitted so as I don't use the 12" ones often I just take the battery out.

J

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