This product is a quality soldering iron replacement bit for T-S100/T-S101 soldering iron. It provides 7 types of soldering tips for your to choice, to meet your different soldering requirements. And all tips are made of steel material for nice heating performance and long durability. Features: Premium Material: It is made of quality steel material and ceramic heating element, which is resistant to high temperature, high hardness and with long durability, suitable for long term use. Fast Heat Conduction: Internal heated design with fast heat conduction effect for quick temperature rise, and with fast heating speed. Various Types: There are 7 types of soldering tips available, to meet your different soldering requirements. Nice Soldering Effect: Fine workmanship, standardized design, with perfect tin soldering effect. Perfect Replacement: These soldering iron tips are perfect replacement part for T-S100/T-S101 soldering iron. Wide Applications: Suitable for electronic production and electric maintenance such as mobilephone, computers, etc. Specifications: Name: Soldering Bit Material: steel Type: KU, K, C4, D24, B2, BC2, I (optional) Item size: KU:105.5 mm / 4.15in K: 109.5mm / 4.31in C4: 105.5mm / 4.15in D24: 105mm / 4.13in B2: 105mm / 4.13in BC2: 106mm / 4.17in I: 103.8mm / 4.09in Item weight: KU: 10g / 0.35ounce K: 11.2g / 0.40ounce C4: 11g / 0.39ounce D24: 10.5g / 0.37ounce B2: 10.5g / 0.37ounce BC2: 10.5g / 0.37ounce I: 10.4g / 0.37ounce Package size: 135 * 60 * 15mm / 5.31 * 2.36 * 0.59in Package weight: 20g / 0.71ounce Packing List: 1 * Soldering Bit