[Provide good thermal and electrical conductivity]: These high quality copper contact tips can provide good thermal and electrical conductivity to enable constant current transfer to the wire [More Stable]: They also feature a smoother center bore, which reduces friction as the wire passes through, resulting in consistent wire feed with less drag [Good choice for replacing stock parts]: Quite easy to fit, perfect match and good choice for direct replacement of original parts [Long Lifespan]: High temperature resistant and corrosion resistant, sturdy with long service life; Suitable for Binzel 15AK MIG Welding Torch [Absolutely Satisfactory Guarantee]: If you have any problems or suggestions regarding this product, please do not hesitate to contact us by e-mail; We will surely give you a satisfactory solution and never let you suffer any loss Why should you choose our welding contact tips? 1. Brand new and of high quality 2. Provide good thermal and electrical conductivity 3. Sturdy and durable 4. High temperature and corrosion resistant, with long service life 5 .Easy enough to set up 6.Fit for Binzel 15AK MIG welding torch Specification: Material: red copper Optional size:1.0mm Quantity: 20Pcs Total length: 2.5cm / 1in Package Weight: Approx. 139g / 3.3oz Package includes: 20 * Copper Contact TipsNote: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.