Bob's Knobs Astro Tech Collimation Knobs - Secondary Mirror
Bob's Knobs Astro Tech Collimation Knobs - Secondary Mirror
Bob's Knobs Astro Tech AT10RC Collimation knobs fit Astro Tech AT10RC secondary. The knobs are made from a black plastic that is 16 mm (5/8") in diameter. The threads are stainless steel.
The factory dust cover may contact the knobs with installation but the cover will remain in place. As a substitute you can use a shower cap instead.