The DC HOB-O® lightweight hole borer can be easily carried to the workpiece and quickly centered on it. All that you need is a single center punch mark. Set the hole radius on the built-in scale, light the torch, start your cut, and hit the switch to make smooth, accurate holes in any position. The DC HOB-O® industrial cutting machine virtually eliminates the need for grinding and touch up.

The CB-1P circle-cutting machine is designed for cutting beveled holes in light wall pipe or vessels. This automatic cutting machine is supplied with an air plasma power source (specified by the customer), torch, and 50' (15 m) leads. It will cut beveled holes in light wall pipes or vessels with wall thickness up to 5/16" (7 mm).

The CB-1PR is designed for cutting beveled holes in light wall pipe or vessels with wall thickness up to 5/16" (7 mm). This mechanized circle cutter features an automatic rise and fall cam that controls the torch position for saddle-cut holes up to 2/3 of the work diameter. The cables and air hoses supplying the unit pass through slip rings and O-rings, enabling the machine to operate continuously in either direction without cable or hose wrap-up.

The CB-2 circle-cutting machine is mounted on a special frame with a releasable permanent magnet base specially designed for use on vessels and large diameter pipe. The CB-2 includes variable speed rotation, 2-hose oxy-fuel machine torch, and an adjustable tip adapter. Moreover, this  industrial cutting machine features vertical and horizontal torch adjustment and a rise and fall cam.

The CB-3 Circle Burner uses the oxy-fuel cutting process for a single pass, square or beveled hole cuts. This operator-controlled circle-cutting machine is designed for use on large-diameter pipes, domed heads, flat plates, and pressure vessel manufacturing. The CB-3H Circle Burner has the same features as the CB-3 industrial cutting machine and includes a hillside kit.