Ultimate Jigging 45mm Knob - Accurate Model with Custom B Shaft can be directly assembled on most Accurate reels and old version Avet reels list as below：

• Accurate Boss series including all BX and Xtreme two speed reels.
• Old Version Avet SX, MX, JX, LX, HX and Pro EX single and two speed reels (a 6mm sleeve will included in B Kit for Avet reel). OLD VERSION OF AVET REEL KNOB IS NOT REMOVABLE (IT WAS RIVETED ON ARM).
• Fit on any reel has 5mm hole on handle arm after remove original knob.

Most of Accurate Reel Knobs and old version Avet Knobs are not removable; you need to drill it off from the original knob. The processes are as below:

• Remove whole handle from your reel first, place on flat and steady object;
• Use center punch make a mark at center of rivet before you drill down. Or, you can use smaller size drill bit to drill the center first, then use bigger drill, not need to drill deep, to go deep enough to drill out the rivet flat part.
• If the rivet hole on handle arm is smaller than 3/16” or 5mm, you can use 3/16” or 5mm drill bit to make the hole to fit new knob screw.

Please see below Pictures (click to enlarge) to show the installation process step by step.