czxhaery Conference Table Folding Conference Room Table On Wheels,Folding Conference Tables Flip Top Mobile Trainning Table Foldable Meeting Tables Rolling Meeting Table (4pack) Xpose Safety Blades are 1 2” or 12 including 1 bottom open Blades are 1 2” or 12 mm wide by 4 ¾” long has 2 holes for mounting It has a solid column bar and sturdy base with slots for fitting a machine vice This Plunge Drill Stand is ideal for holding your drill steady during use and allows for much more accurate drilling than hand held operation Which Will Not Produce A Lot Of Noise When Moving Which Can Quickly Rotate 360° And Move To Any Desired Position