Bore Gauges

Most two- and three-point bore gauges stop at 6 mm, leaving small bores with no good option. The Fowler-Bowers MicroGage is a two-point split-ball ...

When a bore size changes, you shouldn’t have to buy a whole new gauge. Featuring Bowers' historic quality and high accuracy, the Ultima Bore Gaging...

Inspecting a range of bore sizes shouldn’t mean buying a separate gauge for each. The Fowler-Bowers Ultima Bore Gauge Set is a high-accuracy bore g...

Operator “feel” and over-travel make repetitive bore inspection inconsistent and tiring. The Fowler-Bowers XTH3 Bluetooth Holematic pistol-grip bor...

Measuring a 0.75–2" bore by feel invites error and hand fatigue. Fowler-Bowers BLUETOOTH XTH3 Holematic Pistol Grip Sets range of bore gages offer ...

Standard bore gauges can’t reach into an internal groove to measure its diameter. The INSIZE internal groove bore gauge is made for exactly that — ...

Small bores are where a hand gauge fights you — hard to center, easy to rock off true diameter. The Mahr 844 K self-centers in the bore and holds a...