Features: * Brand New and High Quality *Soldering Iron Tips: Materials: oxygen-free copper; Type: lead-free tip; Size: 6.5mm in outside diameter, 4.1mm in inside diameter. *Precision ground copper tips are plated with iron, nickel and chromium, long lasting use life of 900M Soldering Tips, up to 40,000 solder joints can be used. *Easy to use, quickly heat with cooper base, good ability to hang tin, not easily oxidized. Suitable for 936, 937, 938, 969, 900M, 8586, 852D soldering iron stations. Specifications: *Type B (conical): Type B tip has no directionality. The entire tip of the tip can be welded. It is suitable for general welding. It can be used regardless of size welding. *Type D ( -word batch nozzle type): Welding is performed using the batch nozzle part. It is suitable for welding that requires a large amount of tin, such as a welding environment with large welding area, thick terminals and large pads. *Type C (horsehoe type): It is welded diagonally to the front end of the tip of the soldering iron. It is suitable for welding requiring multi-tin quantity. The application range is similar to D type. *Type K (Knife shape):It is a multi-purpose tip for welding SOJ, PLCC, SOP, QFP, power supply, grounding components, connectors, etc. *Type I(Round tip): Tin has a small tip and is suitable for fine welding. It is suitable for welding bridges in small spaces or welding dies. *Material: Copper Alloy *Outside diameter: 6.5mm (0.26 inch) *Internal diameter: 4.1 mm (0.16 inch) *17 Different Shapes: 900M-T-B, 900M-T-SB, 900M-T-5B, 900M-T-IS, 900M-T-I, 900M-T-K, 900M-T-SK, 900M-T-1.5K, 900M-T-0.8D, 900M-T-1.2D, 900M-T-1.6D,900M-T-2.4D, 900M-T-3.2D, 900M-T-1C, 900M-T-2C, 900M-T-3C, 900M-T-4C Package Contents (Optional) : Package 1#: 3*Lead-Free Solder Iron Tip Package 2#: 5*Lead-Free Solder Iron Tip Package 3#: 10*Lead-Free Solder Iron Tip Package 4#: 12*Lead-Free Solder Iron Tip Package 5#: 15*Lead-Free Solder Iron Tip