Hub Disc Survey Marker (100-Pack) GLM400CL It has a combination dual

It has a combination dual mode selector know that allows switching between rotary hammer and hammer only modes

There is one change in the 2017 NEC Code that impacts the functionality of your ElectriCalc Pro Model 5070

With a three-inch compact size that easily clips on bags and belts

No Load RPM: 0-900

Vertical Height of Stand: 48

Hub Disc Survey Marker (100-Pack) GLM400CL It has a combination dualHubdisc Survey Marker Discs are in packages of 100. Each Hubdisc is 1" in diameter and the nail hole is 1 8" in diameter. 40 mil. plastic, yellow one side, fluorescent orange other side Printed "SURVEY MARKER DO NOT REMOVE" For use with Hammerless Hub Stake and Mag or P. K. Nails