Hexagon bit is made of high quality chrome vanadium steel, which increases strength and can remove stubborn screws. The 110mm super-long drill bit is designed to be suitable for hard-to-reach areas, and the chamfered end can be safely fixed on the wrench for anti- grip. All sleeves are carved for easy identification, and stored neatly in a snap box for easy carrying. Polished chrome-plated surface is easy to clean and has strong rust resistance. There are 7 sizes of the suit: T25, T30, T40, T45, T50, T55 and T60, which are widely used in computer or automobile operation with star fasteners. Name:3/8 inch extended hexagonal sleeve set Quantity:7pcs Weight:about 630 grams Colour:As Shown Material:Chrome vanadium steel Package Contents: 1 * Hexagon sleeve set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.