The portable planers on the market are great for the small shop, unfortunately the adjustment control is not very good and so the pointer that comes on the unit does not provide very good resolution of the cutter head position. The performance of the Delta ® Portable Planer can really be enhanced  with the addition of a SHAN ™ 271-520 Digital Scale. This product provides you with the ability to accurately measure and therefore control the  cutter head  position so that you do not take too deep of cut. It also provides you with reliable and accurate measurements that allows you to plane to your target thickness without the trial and error adjustment that you usually do.