Gloves & Safety Apparel. Auto & Truck Maintenance. Machining, Bearings & V-Belts. KEO 53539 Countersink Sets, 100 deg. Countersink Set, 100 Degrees, 5, Cobalt, Bright (Uncoated). View more great items! Other Business & Industrial. Electrical Boxes and Enclosures. Light Industrial Equipment & Tools. Electrical Outlets & Recepticles. Add to Favourite Sellers. Sign up to Newsletter. This listing is currently undergoing maintenance, we apologise for any inconvenience caused.