Circle Cutting

The DC HOB-O® lightweight hole borer is easily carried to the work, and is quickly centered on the workpiece. 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; virtually eliminating the need for grinding and touchup. 

• Easy setup
• Can cut and bevel holes with precision
• Made in USA

The CB-1PR is designed for cutting beveled holes in lightwall pipe or vessels with wall thickness up to 5/16″ (7 mm). An automatic rise and fall cam 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. 

• Must be mounted on a carriage or manipulator
• Rise and fall cam 5″ (127 mm)
• Application type – thin wall, small diameter pipe

The CB-2 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, adjustable tip adapter, vertical and horizontal torch adjustment and rise and fall cam.

• Mounted by a manually operated magnet
• Rise and fall cam 0-7″ (0-178 mm)
• Application type – vessels, large diameter pipe

The CB-3 Circle Burner uses the oxy-fuel cutting process for single pass, square or beveled hole cuts. It is designed for use on vessels, large diameter pipe, domed heads and flat plate.

The CB-3H Circle Burner has the same features as the CB-3 and includes a hillside kit.

• Must be mounted to a carriage or manipulator
• Rise and fall cam 0-7″ (0-178 mm)
• Application type – domed heads, vessels, large
• Made in USA