Digital Caliper 6 in Precision Measuring Tool - Large LCD

In this review the General Tools Digital Caliper #147 is assessed for DIYers, woodworkers, and shop technicians who need a compact, dependable measuring tool. The bottom line: this 6 in caliper delivers reliable, repeatable measurements thanks to a large, easy-to-read LCD and a tri-mode display that switches between decimal inches, fractional inches, and millimeters. It stands out for day-to-day shop use because it combines a sturdy stainless steel build with user-friendly features like auto power off, a spare battery, and a foam-lined carrying case.

Key Features

• Extra-large display: The oversized LCD makes readouts quick to scan, helping reduce mistakes when measuring small parts or working under dim lighting.
• Tri-mode measurement: Switching between decimal inches, fractional inches, and millimeters allows fast conversions on the fly without separate tools.
• Rugged construction: Heavy-duty stainless steel and non-marring carbon fiber components hold up to workshop wear while protecting finished parts.
• Versatile measuring: Measures inside and outside diameter, depth, and step dimensions, which covers most common shop and construction tasks.
• Battery and storage: Includes an SR44 spare battery, battery cover screwdriver, and a foam-lined case to protect the caliper when not in use.
• Power saving: The auto on/off feature preserves battery life so the tool is ready when needed.

Who It's For

The General Tools Digital Caliper #147 is aimed at craftsmen, machinists, and serious DIYers who need a compact 6 in instrument for frequent, accurate measurements and simple unit conversions. It is particularly useful for woodworking setups, checking board thicknesses, setting cutting depths, and small part inspection.

Those who need longer reach or sub-micron accuracy should look elsewhere; this model is optimized for convenience and everyday precision rather than extreme-range or laboratory-grade metrology.

Pros & Cons

Pros

• Clear, extra-large LCD that improves readability and reduces user error.
• Tri-mode display offers quick switching between inches, fractions, and millimeters for flexible use.
• Solid stainless steel construction and included foam-lined case make it durable and portable.
• Includes spare battery and small tools to keep it running and maintained.

Cons

• Measurement range is limited to 6 in, so larger workpieces require a longer caliper.

Specifications

Brand	General Tools
Model	Digital Caliper #147
Range	0 to 6 in (153 mm)
Display modes	Decimal inches, fractional inches, millimeters
Resolution / Accuracy	Resolution 0.0005 in (0.01 mm); Accuracy 0.001 in (0.02 mm)
Power	SR44 battery (included) + spare
Included accessories	Foam-padded carrying case, battery cover screwdriver, conversion chart

Our Verdict

The General Tools Digital Caliper #147 is a practical, value-minded choice for hobbyists, woodworkers, and shop technicians who need straightforward, repeatable measurements up to 6 in. Its large LCD, tri-mode readout, solid stainless construction, and included accessories make it a reliable everyday tool that balances durability and convenience without overcomplicating basic measuring tasks.

Frequently Asked Questions

Does it measure in fractions?
Yes, the caliper switches to fractional inches as one of its three display modes for quick fraction readouts.

What is the measurement range?
The caliper measures from 0 to 6 in (153 mm), suitable for small parts and typical woodworking tasks.

Is a spare battery included?
Yes, an SR44 spare battery is included along with the installed battery and a small screwdriver for the battery cover.