This bits set is an useful tool for you to use, in your daily life, you need to change this bits often for the different use, with this tool set, you do not need to by then one by one, save your time and money. Come on and try it, it will not let you down.<br/>Features:<br />This tool set is suitable for blacksmiths of all skill levels, hobbyists who cleaning and weld or deal with metal frequently.<br />This 31 piece bit kit gets the most commonly used fastener sizes quickly and efficiently.<br />With this tool set, you do not need to buy them one by one, which can save your time and money.<br />With the box to carry them, you can easily to take them to anywhere you want to use it.<br />Made of fine material, has a long service life, you do not need to change it often.<br/>Specifications:<br />Material: metal<br />Main color: silver<br />Model: <br />Flat drill bit: 13, 16, 19, 20<br />Three-point woodworking drill bit: 6, 8, 10<br />Construction drill bit: 4, 5, 6, 8<br />Twisting drill bit: 1.5, 2,  2.5, 3, 3.5, 4, 4.5, 5, 6, 8<br />Bit: PH1, PH2, PH3, T10, T15, CR-VT20, SL4, SL5, SL6<br />Package size: 220 * 120 * 35mm / 8.7 * 4.7 * 1.4in<br />Package weight: 598g / 1.3lb<br/>Packing list:<br />4 * Flat Drill Bit<br />3 * Three-point Woodworking Drill Bit<br />4 * Construction Drill Bit<br />10 * Twisting Drill Bit<br />9 * Bits<br />1 * Connect Rod