Optimal power-to-weight ratio assures superior speed and performance. Compact design and mounting brackets easily adapt to a wide range of configurations to maximize application versatility.

Contact us today for more info, or check out our entire line of line boring machines.

Our product line has grown to exceed over 40 on-site machine tools: line boring machines, bore welders, flange facers, portable mills, and advanced valve testing systems. Additionally, to support our global customer base we have well over 2,500 tools available in our rental fleet.

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Bar Diameter:
1.25 inches (31.8 mm)

Boring Diameter:
1.5 – 5 inches (38.1 – 127 mm)

Max. Stroke:  
10 inches (254 mm)

Torque at Bar:
40 ft-lb (54.2 N m)

Power Option:

Boring Capacity

– Bore from 1½ – 5 inches (38.1 – 127.0 mm) in diameter, using the bar and tool head.

– The 1¼ inch (31.75 mm) diameter bar is available in almost any length in 1 foot (304.8 mm) increments.

– Holes are positioned at 6 or 10 inch (152.4 or 254.0 mm) intervals along the bar to hold 3⁄8 inch square tool bits in the SAE inch version, and 10 mm square tool bits in the metric version.

– The clamp-on tool head covers the 31⁄4 – 5 inch (76.2 – 127.0 mm) diameter range.


– 1.0 Hp (0.74 kW), universal type motor drives a 7.5:1 reduction gear box; produces up to 90 ft-lbs (122 N•m) of torque at the bar.

– Two-speed motor has bar speeds ranging from 52 – 88, and 89 – 185 no load, free speed rpm; 2 – 2.2 amps.

– Metal removal rate of up to 1 cubic inch/min (16.4 cm3/min) in C1018 steel.

Compact Design

– The rotational drive extends only 19 inches (482.6 mm) out from the mounting bracket and 14 inches (355.6 mm) from the bar to the top of the motor. The rotational drive can be mounted with the motor in any position around the bar if clearance is a problem.

– Rotational drive with feed rack and anti-torque scissors weighs only 35 lbs. (15.9 kg).

Automatic Power Feed

– Infinitely variable, reversible power feed has a 10 inch (254.0 mm) stroke. An automatic feed stop mechanism disengages the feed at the end of the 10 inch stroke.

– Feed rate is from 0 – 0.018 inches (0 – 0.46 mm) per revolution.