OTC's No. 4619 Professional Battery Hydrometer displays a batteries specific gravity (density) on an easy-to-read float with a scale ranging from 1.100 to 1.300. Hydrometers are used to test the state of charge of a battery cell. This is performed by measuring the density of the electrolyte, which i...

These fish bone tweezers are an essential tool for gently pulling bones from a fish without tearing the flesh.

A service call from a professional locksmith can cost well over $100 - plus the inconvenience (and embarrassment) of locking yourself out of home or car. Simple to install - just find a hidden area of metal that attracts the magnet (Hint: if the metal has rust, that means it contains iron and is 'fe...

Spark plug set 816761Q5 is for use on 4-cylinder MerCruiser engines with conventional points ignition systems (1963 through 1995). The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier...