Drill Flange for NDA-2 Adapter A safety shield in the rare instance that your drill's chuck releases your auger. 8" diameter, made of lightweight polyethylene. Compatible with NDA-2 only WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harmSpecifications and Features: Model No : 66153 Brand : StrikeMaster StrikeMaster Drill Flange f/NDA-2 Adapter UPC : 43253122150 Weight: 0.2 Dimensions : 1x10x9