3 Piece precision inspection set includes: 0-1" .001" dial indicator, magnetic base and 22 piece. indicator point set. Complete with hard plastic case | 1" dial indicator: graduation 0.001", 3/8" stem diameter, 2" dial face and lug back | Magnetic base: overall height 9", on and off switch, 130 lb. power pull, base measures 2" width X 2-1/2" depth | 22 pc. indicator point set: AGD specifications (4-48 threads)