Features: Adjustable rod for different demands of lengths Comes with extension rod can be inserted into the handle for length adjustment Highly precise tips in various specifications for different uses The handle is designed based on Human Mechanics, which makes operation more efficient and convenient All tips are made of supreme chrome/vanadium steel (6150#), and specifically heat-treated (Hardness HRC52°C -56°C) 45pcs in 1 precision screw driver set includes 42 insert bits, 1pc Rubber Handle(approx 11.5cm), 1pc extension rod(12.0cm), 1pc Metal Handle(approx 11.9cm) Brand new tool kit would be the perfect accessories for changing out your objects Screwdriver handle material is PP&TPR and non-slip Screwdriver handle with activities rotating cap Precision screwdriver set can be used for a variety of projects from hobbies, automotive work and the computer repair and other electronic repair Specification: 45 in 1 pocket precision screwdriver set Trox screw driver : T4, T5, T6, T7, T8,T9, T10, T15, T20 Hex screw driver : H1.0,H1.5,H2.0,H2.5, H3.0,H3.5, H 4.0 Cross screw driver : PH00,PH0, PH1, PH2 Flat screw driver: 1.3,1.5,2.0,2.5,3.0, 4.0 Y screw driver : Y1.5, Y2.0 Five-star screw driver:1.5,2.0 Triangle driver:Entity triangle 2.0 and 2.3 Others:M2.5,M3.0,M3.5,M4.0,M4.5,M5.0,M5.5,PZ0,PZ1 etc And so on(More details please see the picture) Package includes: 1 x 45 in 1 Precision Screwdriver Tools Set for RC PC Mobile Car 1 x Sourcingbay Warranty Card NOTE: Sourcingbay created this product page, only Sourcingbay will offer the exact product! Please notice it.