The Snap-on BST6 Magnetic Brake Retainer Spring Tool is designed to ease brake work on most domestic and foreign cars, SUVs, and trucks. Neodymium magnets inside the tool's working end free up the technician's hands to hold a pin on the far side of the braking plate, and a new O-ring addition grips better than the previous older-style serrated surface. A patented Instinct handle makes the tool easier to hold and more comfortable for use over long shop days.