Value Line Digital Plunger Dial Gauge Range 12.5mm / 50mm READING 0.01MM/ 0.0005', Large digits, Zero setting, with 0.01/0.0005" display resolution. Preset referance, Manual/auto power off.

• Strong construction
• Large Digits for better viewing
• Display Resolution 0.01 mm & 0.0005 Inch
• Zero setting
• With Calibration certificate

Useful functions :

• mm / Inch
• Preset Reference
• Manual / Auto power off

• The dial bore gauge offers - an accurate method of measuring a bore, or detecting a taper or ovality
• Calibration - The dial bore gauge must be calibrated to a known size and will indicate the deviation from that size by a maximum of 1mm
• A set of spacer rings and anvils are included with the bore gauge
• The anvils are used to set the measuring range to within 1mm of the desired bore to be measured or produced
• An outside micrometer, setting ring or slip gauges can be used to calibrate the bore gauge
• The bore gauge has a knurled locknut to secure the anvils and spacers
• There is a sprung loaded guide used to centralize the two measuring contact points to the bore
• At the opposite end of the gauge there is a heat insulating handle with a split collet and knurled locking ring to secure the dial indicator
• Included with the bore gauge - Probe body, dial indicator, 3 anvils, 1 spacer ring, storage case and instructions
• Measuring Range - 35 to 50mm

Machine-DRO History - A division of The Allendale Group, a family run British company founded in 2003. Our roots are firmly based in the UK, with a head office, engineering and inspection department at our works in Hoddesdon, Hertfordshire. We pride ourselves on being a measuring tool specialists offering tools, services, advice and expertise to our end customers and international distributor network.

Product Instruction:

1. Insert battery in, "+" pole upward
2. Switch on the tire depth gauge
3. Put base on flat surface and press the bar downward
4. Press Zero Button, the LCD screen will display 0.00mm
5. Put gauge on tire, hold stable and press bar tip into tyre profile
6. Read profile depth value value directly
7. For accurate measuring, test it for several times
8. Switch off the gauge, Please remove battery when you don't use it for long periods