Magnetic Base Dial Indicator 0.4in Measuring Range 176lbs Max Pull Long Arm 0.004in Graduation Features： 1、Maximum Pull: Strong 2 magnet surfaces with ON/OFF control provides 176lbs (80kg) maximum Pull. Please note that a metal countertop/surface with a thickness of 30mm and above is required to achieve this maximum pull. 2、Fine Adjustment Knob: With fine adjustment knob for preciser positioning. Lug back included (hole size 1/4in, 6.3mm). 3、Full 360° Rotation: The bezel combined with the outer dial can rotate a full 360°, allowing you to set zero in any position. 4、Easy Reading: The continuous scale is easily marked for effortless reading. The bezel clamp stabilizes the reading and the improved crystal face further simplifies the reading process. 5、Measuring Range: Dial gauge with measuring range 0?10mm / 0?0.4in, scale 0.01mm (0.004in), high precision and easy to use. Specification： Item Type: Dial Indicator with Magnetic Base Characteristic: With Magnetic Base And Fine Adjustment Long Arm Measuring Range: 0-10mm / 0-0.4in,?Graduation 0.01mm (0.004in) Maximum Pull: 176 LBS Package List： 1 x Dial Indicator 1 x Magnetic Base Stand 1 x Blow Molded Case