A round permanent magnet is inserted into this hole, and a handle or button is attached to allow the user to rotate the magnet. The Starrett 659 Heavy Duty Magnetic Base Indicator Holder Set includes magnetic base, upright post assembly and AGD dial inch reading indicator 25-131J in case... The base has an on/off switch that releases the magnetic field when positioning the base. Rotating the magnet turns the base on and off as this causes the position of the magnetic field to rotate as well. The v-shaped base attaches to flat surfaces or round surfaces up to 5/125mm in diameter. This allows free motion of the arm so that the dial indicator can be moved into position on the workpiece. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. A threaded adapter on the base makes it possible to use Starrett Series 657 magnetic base posts and attachments. The vertical post and rod in a magnetic base connect using swiveling connectors, or snugs. The magnetic base has a circular hole through the center. When turned on, the magnetic base has a holding power of 100 to 150 lb. The Starrett 659P magnetic base is used to mount dial indicators for taking precise and repeatable measurements. Ljia 1 Pair Black Bike Brake Cable,Bike Brake Wire Set,Front and Rear Brake Cable for Road Bike and Common Bike,Bike Brake Cables and Housing,Brake Parts A416 Durable Starrett Quality - Manufactured by Starrett, a trusted leader in precision tools, this magnetic base holder assembly guarantees long-lasting reliability and superior functionality. 657TW Magnetic Base w Flex O Post Assembly & Fine Adj Reliable Magnetic Base Performance - Designed with a robust magnetic base, it provides secure positioning on metal surfaces, delivering stability and precision during use. 659p Starrett Magnetic Base Starrett 659A Heavy-Duty Magnetic Base Assembly Set, With Upright Post Thread Holder
