Whidden Bump Gauge - Accessory

[K22]

I really like the single piece, caliber group specific Whidden Bump Gauges. The only feature that left me wanting was the lack of a thumb screw to ease the insertion on the jaw of the caliper.

Well, Whidden now offers aftermarket thumb screws for their bump and bullet comparator gauges. I just order a set.

So, if you have these gauges you may want to take a look at this upgrade.