3D Mini Magnetic Base Holder 50 lbs. Pull 9" Reach for Dial & Test Indicators Our Part # ALL-52500 Magnetic pull: 50 lbs. and reach: 9" Central locking mechanism with On/Off magnet power switch. Accepts all AGD type dial indicators and test indicators Base dimensions: 1-7/16 x 1-13/64 x 1-13/32"