Tooth design reduces vibration and clears chips to improve cutting speed. Sharper tooth geometry cuts material faster for faster drilling.

The 520SO is one of the best O-ring chains in the industry. 520SO chains feature heat treated hi-carbon alloy steel components with seamless rollers and shouldered bushings for strength and durability, and are fitted with O-ring seals. O-ring seals are made from an advanced Nitrile Butadiene composi...

"Radar Made Simple for Cruisers" 2nd Edition continues enhancing basic radar operation and adds radar interference and a some new trick for single handing cruisers. The original focus on how a cruiser, or especially a single handing cruiser, might best use their radar to remain safe and sane remains...