The specialists for the intricate job! Simply a joy to use. 1-The MICROMOT standard 3/4" collar allows use in the Drill Stand MB 140/S, Router Base OFV, Universal Holder UHV and UHZ and Angle Adapter WS 90. 2-Stable housing of fibreglass reinforced POLYAMIDE. With soft gripping area for extended use during hours. Tried and tested on 1001 uses: milling, drilling, routing, de-scaling, polishing, cutting, cleaning, sawing, engraving, etc. This is due to a number of factors: The diameter of only 1 3/8" makes the tool very easy to handle. Its weight of 1/2 lb, its quietness and effortless, vibration-free drive via the special permanent magnet motor, the ground spindle and collar bearing all contribute to the ergonomic design. An efficient cooling system facilitates extended use under various load conditions. The high quality, triple-slit steel collets ensure accurate clamping of the cutters and a very high concentricity. The size of the machine dictates a 12V drive system, use of a transformer is thus required. For milling, drilling, routing, polishing, cutting, cleaning, sawing, engraving, etc. The tools are useable on any workable material e.g. steel, precious metals, glass, ceramics, plastics, precious stones, etc. They are ideal for model builders, woodcarvers, electronic hobbyists, tool and die makers, jewelers, opticians, artists, dental technicians, etc. The 12V supply allows the safe use of coolant, e.g. when grinding and cutting semi-precious stones. Mill/Drill Unit MICROMOT 50/E The electronic speed-control enables the selection of speeds from 5,000 to 20,000 rpm. Phase angle control and feedback effect circuitry yield high torques, even at low speeds. Six MICROMOT collets for shanks covering 1/32", 1/16", 5/64", 3/32", 7/64" and 1/8" are supplied. Power consumption is 40W max., length 8 21/32" and weight 1.2lb. Mill/Drill Unit MICROMOT 50 As 50/E, except without speed control. Speed control via power supply NG 5/E. No load speed is 20,000 rpm.