Karas Pen Co

Tumbled Aluminum Bolt

Tumbled Aluminum Bolt - Main image
$37.5 $75 In stock

Category: Products

Tumbled Aluminum for Everyday Carry

The most recent version of the Tumbled Aluminum Bolt maintains the original external geometry of the pen, while making small engineering adjustments to improve function. The internal o-ring on the lower body keeps the pen from unscrewing while being carried in a pocket. Changes to the J-slot include moving it upwards as far as it can go to keep the pen under 5.5 inches in length; and the J-slot itself has been rounded more dramatically to draw the bolt into place when actuating the refill. Machined from durable 6061-T aluminum that is then heavily tumbled to provide a pre-worn but uniform finish that will only look better as it ages and gets more dings and nicks. Ships in our recyclable packaging with a custom vinyl sticker.

Choose between Pilot G2 rollerball OR Schmidt easyFLOW 9000 in black ink.

Customer Reviews (4.8 / 5 · 15 reviews)

David ★★★★★

Took it on my daily commute and the external shape feels just right in hand—the aluminum's got a good weight without being heavy. The internal tweaks seem subtle, but the whole thing operates smoother than the older version I'd been using.

Joshua ★★★★★

The tumbled finish gives it a nice grippy texture that I wasn't expecting, and the pen feels perfectly balanced in hand. I've been carrying it for two weeks now and the way it's held up in my pocket has been impressive. The fact that they kept the original shape while tweaking the internals really s

Emma P. ★★★★★

The machining on this pen is spot-on—the tumbled finish hides fingerprints beautifully. It’s got some heft to it, which I appreciate for writing, and the external geometry feels just right in hand.

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