Bob's Knobs Celestron SCT 9.25” f/10 metric (stainless steel)

Bob's Knobs for Celestron SCT 9.25” f/10 Metric: Simplified Collimation for Your Telescope Customized for Celestron SCT 9.25" f/10: Designed for Celestron 9.25” (23.5 cm) f/10 SCT models with metric screw threads, specifically for CPC 925 versions. Not suitable for C9.25 models with “Trifid” Fastar or EdgeHD optics. Part Options - Part: C9.25metBO and C9.25metSS: Telescope Compatibility: Ideal for Celestron 9.25" f/10 SCTs with metric collimation screws. Knob Varieties: Available in black oxide steel (black) or stainless steel (silver), each 12 mm (1/2”) in diameter for comfortable grip. Thread Types: Choose between black oxide or stainless steel threads to match your telescope's collimation screws. Thread Type Identification: Metric vs. Standard Threads: Black Phillips factory collimation screws typically have metric threads; however, some may have standard threads. Use our hints to identify the correct type. Environmental Considerations: Black Oxide Steel: Recommende