The only unit you will need if high production of large holes is your business. 2 models are available, SE100/32 with a swivel base and E100/32 without. Both units have a drilling capacity of 4?
through 3" thick material, or 1-1/4" using standard twist drills, and are equipped with a 2 speed gearbox plus a variable speed control, and #3 morse taper spindle.