#6,170 in Industrial & Scientific
Reddit mentions of General Tools 147 Digital Fractional Caliper with Extra-Large LCD Screen, 3 Mode Display, 6-Inches
Sentiment score: 1
Reddit mentions: 3
We found 3 Reddit mentions of General Tools 147 Digital Fractional Caliper with Extra-Large LCD Screen, 3 Mode Display, 6-Inches. Here are the top ones.
or
EXTRA LARGE, EASY TO READ TRI-MODE DIGITAL DISPLAY - The Fraction+ Digital Caliper switches between inches, millimeters and fractions at the touch of a button.RUGGED STAINLESS STEEL DESIGN - has heavy duty housing and delivers inside, outside, depth and step measurementsPRESERVE BATTERY LIFE - with the Digital Caliper's auto on/off featureResolution 0.0005" (0.01mm), Accuracy 0.001" (0.02mm)INCLUDES: Power Source: SR44 battery, Foam Padded Carrying Case, 1 Year Warranty
Specs:
| Height | 0.55 Inches |
| Length | 9.25 Inches |
| Number of items | 1 |
| Size | 0 - 6" Range |
| Weight | 0.46875 Pounds |
| Width | 3.25 Inches |
Personally, I prefer dial calipers. I enjoy knowing the machinery that went into them (I know how digital work but it isn't the same). I also think that they are more accurate. You can feel them catch, screw up. You can see the tiny changes that thumb pressure can make in size that can be easy to miss with digital.
The beauty of a digital caliper is that it can do imperial and metric in the same device. Metric calipers are rare and priced accordingly. This pair https://www.amazon.com/gp/product/B000UCIGCW (which I own) will also give you a fractional measurement in 64ths.
That being said, I have both. A pair I bought from a shop, and hand selected from a pile, and those generals. They get used in different roles. I pretty much only use the digitals when I need a metric measurement.
I'm not a reloader, but personally I would use my dial calipers over the generals. The dial will drift half a thousandth, but those generals will drift a thou and a half or more. I had a (cheaper) pair that would drift even more depending on how fast I slid them open and closed.
I use my calipers a fare bit in other interests and those are the ones I trust.
When you're buying one in store (the best way in my opinion), they should read consistently despite how fast\slow\short\far you open them. Do not slam them shut, and for the sake of all things do not close them to zero and lock the screw. They should always be stored slightly open, with the lock screw released.
Very calibrated machine...here's how I calibrate: 1: level X-axis to metal bed mounting plate using calipers, here's what I used: http://www.amazon.com/General-Tools-Instruments-147-Extra-Large/dp/B000UCIGCW/ref=sr_1_1?ie=UTF8&qid=1450496515&sr=8-1&keywords=general+caliper
Use a dial indicator to level the bed, here's the one that I used: http://www.amazon.com/gp/product/B002PTUXRO?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00
and if you have a Taz 5, use this dial indicator mount: https://www.thingiverse.com/thing:551366
The General Tools 147 is something like 25 bones and you'd be hard pressed to be disappointed with the accuracy and reliability.
Not worth it to spend more to get something that is more accurate than a printer can print.
https://www.amazon.com/General-Tools-147-Fractional-Extra-Large/dp/B000UCIGCW