Better known for their range of lathes, the radial-arm drills by the Essbeco Company - the types RD25 and RD12/A - were not made in-house but re-badged Arboga models, the  ER125, ER125S and SR825. Comparatively small for radial-arm drills - with the RD25 standing just 1650 mm high - the latter was a basic, all-hand-feed model while the RD25/A was fitted with power downfeed to the spindle. Both models sat on a 910 mm x 605 mm T-slotted base plate that doubled as a coolant tank - though the pump and other necessary parts were charged extra.
Running in high-precision SKF bearings, the 3 Morse taper spindle and its quill were made in hardened steel and had a travel of 110 mm using either hand or power feed - the latter with two rates of 0.1 and 0.2 mm per spindle revolution. Although not mentioned in any technical literature that the writer has seen, because the spindle of both models was in line with an electric motor (and as on Arboga machines), a drawbar could not be used to hold in spindle fittings. Instead, a screwed ring on the spindle nose retained a "slotted" washer which was slipped over the neck of a Morse taper cutter between its taper shank and the cutting edges. Only one "washer", distance piece and retaining ring were required for the full-size 3-Morse fitting, but to hold tapers of  No. 2 and 1-Morse in adapter sleeves (and the maker's special drill chuck) a total of five were needed. In addition, before a standard "Autolock" or other make of collet chuck could be used, it had to be machined with two opposite slots for the retaining ring and plate to slip into.
Powered by a 2-speed, 0.75/1 h.p. 3-phase motor running at 1400 and 2800 r.p.m., and in combination with a 4-speed gearbox, the RD25 had eight spindle speeds of 100, 150, 205, 300, 440, 640, 880 and 1250 r.p.m. To accommodate the requirements of the power down-feed mechanism, the RD25/A was given a slightly more powerful motor of 1 and 1.2 h.p. - though the spindle speeds remained unchanged.
Heads fitted to the two drills could be raised and lowered on the column by rack-and-pinion gearings, locked in place by two handles, and moved along the arm - which was hardened to 200 Brinell - by a small handwheel. The heads differed in construction; the hand-feed-only RD/25 had its motor built into the casing, while the power down feed RD/25/A had its flange mounted to the head's top face.
200 mm in diameter, the main column had a maximum throat to the spindle centre of 235 mm, a maximum distance to the surface of the base foot of 1060 mm and to the surface of the elevating and rotating round table - when fully lowered - of 510 mm.
Made in a high quality cast iron and with a ground top surface, the elevating and rotating table had a diameter of 500 mm..