No Tools Needed! It's easy ... just grab a Bob's Knob and turn. You can even do it while looking through the eyepiece on most scopes. And you'll never drop that pesky little Allen wrench or screwdriver in the grass again. Installation is a snap with included instructions, and you can undo the modification at any time.
Make life even simpler with a Bob's Knobs No-Tools Kit, which upgrades your finder thumbscrews and visual back thumbscrews, as well.
- Collimation thumbscrews
- No-tools finder thumbscrews (not needed for NexStar GPS series)
- Improved visual back thumbscrews