Magnetic Coil Locators have a threaded steel core with a powerful neodymium magnet built into the base. The base has a square pocket machined into it for the ½" drive removal tool. The core is encased in a urethane shell for easy removal from the concrete. Magnetic locators are used to mount Coil thread protector to a steel form, instead of drilling holes. The magnetic base is 2-5/8" wide and recesses the coil insert by ½ inch. Magnet base is removed from the concrete using a ½" drive ratchet. Part Number Stud Diameter Stud Length Price ZMP-CMB 500 1/2" 2-1/4” $Call ZMP-CMB 750 3/4" 2-1/2” $Call ZMP-CMB 1000 1” 3-7/8" $Call ZMP-CMB 1250 1-1/4” 3-7/8” $Call ZMP-CMB 1500 1-1/2” 3-1/4” $Call **Made in the USA**