Features 1、Adopts chrome vanadium steel for high strength and durability. 2、40 in 1 bits set, will offer you much convenience to use. 3、Portable design, storaged in a box, easy to carry. 4、19pcs 75mm long batch, 19pcs 30mm short batch hea-d and 2pcs connector, which can meet your needs in most cases. 5、The bit set is perfect for engineering, machinery, maintenance of household appliances, electric, pneumatic tools... Specification Features: Adopts chrome vanadium steel for high strength and durability. 40 in 1 bits set, will offer you much convenience to use. Portable design, storaged in a box, easy to carry. 19pcs 75mm long batch, 19pcs 30mm short batch hea-d and 2pcs connector, which can meet your needs in most cases. The bit set is perfect for engineering, machinery, maintenance of household appliances, electric, pneumatic tools... Specification: Item Type: Torx Star Tool Kit Material: Chrome Vanadium Steel Quantity: 40Pcs/Set Package weight: 1600g/3.53lb Package size: 320*140*35mm/12.6*5.51*1.38in Packing List: 14* Torx bits 14* He-x bits 10* Splin-e bits 2* Adapters for 3/8" & 1/2" drive Package List 14*Torx bits 14*He-x bits 10* Splin-e bits 2* Adapters for 3/8" & 1/2" drive