Bob's Knobs Sky Watcher MN190 primary

Bob's Knobs for Sky-Watcher MN190: Precision Collimation at Your Fingertips Achieve Precise Collimation: Elevate your Sky-Watcher MN190 Maksutov-Newtonian telescope's collimation accuracy with Bob's Knobs. Our specialized knobs provide the control and ease of use needed for optimal primary collimation. Part Details - Part: SWMNpri: Enhanced Control: Take command of your telescope's collimation with black plastic knobs featuring a 16 mm (5/8”) diameter and stainless steel threads. Fine-tune your primary mirror alignment with ease. Primary Locking Knobs: Ensure stability and accuracy with red plastic locking knobs that match the 16 mm (5/8”) diameter and stainless steel threads. These replace the factory set-style (grub) locking screws. Screw Length Variations: Our knobs are available with varying screw lengths to cater to your specific needs. Shorter screws with spacers replace the factory Phillips collimation screws, while longer screws serve as locking replacements. Height St