feature:<br />-100% new and high quality.<br />-by precision hining， special surface treatment， anti-high temperature oxidation and anti-corrosion wear.<br />-after the head temperature tin treatment， welding， reliable， easy on the tin， anti-corrosion.<br />-heat and ， suitable for a variety of external thermal electric iron.<br />-tip for lead-free solder， life will be reduced， under the premise of compliance with welding， soldering far as possible， extend tip life.<br />-after soldering tip for some time， the surface will appear oxide layer， it is recommended to use special tools to remove， or the anti appears not eat tin.<br />-add an appropriate amount of rosin core solder working end tip regularly.<br /><br />notes:<br />-tip used for lead-free solder， life will be reduced a lot， it is recommended to make use of soldering， extend tip life.<br />-after soldering tip for some time， the surface will appear oxide layer， it is recommended to use special tools to remove， or will cause<br />  not eat tin.<br />-remember not to dry， otherwise life will be very short.<br /><br />specifications:<br />product name: electric iron head<br />material: copper<br />color: silver<br />length: approx. 60mm/2.36&amp;quot;<br />diameter: 3mm/0.115&amp;quot;<br />power: 30w<br />pattern: tip， screwdriver head， horse head，cutter head<br />quantity: 4pcs<br />weight: 23g<br /><br />package include:<br />4x electric iron heads