The KST DS215MG V3.0 is a modified design and high quality digital servo, fitted with metal gears for strength and reliability. And it has coreless swashplate CCPM/Rudder, which may make your flying more remarkable. The specifications are very impressive, masses of torque, excellent high speed, perfect for 450 RC helicopter airplane.<br><br>Features:<br>All metal case torque.<br>Large stall torgue of 3.7Kg.<br>High precision metal gear.<br>Small size and light weight.<br>With 12mm coreless motor.<br>Included 2 ball bearing.<br>Modified design and high quality, which is an ideal choice for 450 RC Helicopter.<br><br>Specifications:<br>Brand: KST<br>Item model: DS215MG V3.0<br>Material: Metal<br>Signal: Digital<br>Connector wire: About 215mm<br>Operating voltage: DC 6.0-7.4V<br>Operating speed: 0.06 sec / 60&deg;@ 6.0V; 0.05 sec / 60&deg; @ 7.4V<br>Stall torque: 3.10kg.cm @ 6.0V; 3.70kg.cm @ 7.4V<br>Working frequency: 1520us/333Hz, 800us-2200us<br>Motor type: Φ12mm Coreless motor<br>Bearing type: 2BB<br>Item size: 27.5 * 23 * 12mm<br>Item weight: 28g (wires included)<br><br>Package Information:<br>Package size: 7.3 * 4.5 * 3.1cm / 2.9 * 1.8 * 1.2in<br>Package weight: 27g / 1.0oz<br>Brand gift box package<br><br>Package List:<br>1 * KST DS215MG V3.0 Servo<br>3 * Servo Horns and Fittings