Features
30pcs precision screwdrivers bit set includes:
1pc aluminum handle
1pc extension bar
28ps precision screwdriver bits
Torx: T2, T3,T4,T5,T6, T7, T8, T9,T10,
T15, T20
Hex：H0.7,H0.9,H1.3,H1.5,H2.5,
H3.0,H3.5,H4.0
Philips:PHOO,PHO,PH1
Y Screw Driver:Y0,Y1.
U Screw Driver: U2.6
Triangle：2.3
Star：0.8
Specifications
| Model No | Specification | Includes: |
| 260140030 | 30pcs | 1pc aluminum handle 1pc extension bar 28ps precision screwdriver bits Torx: T2, T3,T4,T5,T6, T7, T8, T9,T10, T15, T20 Hex：H0.7,H0.9,H1.3,H1.5,H2.5, H3.0,H3.5,H4.0 Philips:PHOO,PHO,PH1 Y Screw Driver:Y0,Y1. U Screw Driver: U2.6 Triangle：2.3 Star：0.8 |
| 260450021 | 21PCS | 1pc aluminum handle 20ps precision screwdriver bits Slot:1.0/2.0/3.0/4.0 Torx: T5,T6, T7, T8, T9,T10,T15, Hex：H4.0 Philips:PH000,PHOO,PHO,PH1 Y Screw Driver:Y0 U Screw Driver: U2.6 Triangle：2.3 Star：0.8 |
Product Display
The operation method of precision screwdriver kit:
Align the end of the screwdriver with the special shape with the top recess of the screw, fix it, and then start to rotate the handle.
Tips: technical principle of precision screwdrivers:
When the screwdriver is used to pry the cover, the working principle of the lever is used. The greater the distance between the power point and the fulcrum, the more labor-saving, so the long screwdriver is more labor-saving than the short screwdriver. The screwdriver uses the working principle of the wheel axle when it is used to screw the screws. When the wheel is larger, it saves more effort. Therefore, it saves more effort when using a screwdriver with a thick handle than when using a screwdriver with a thin handle.
