A screwdriver is a tool, manual or powered, used for screwing (installing) and unscrewing (removing) screws. A typical simple screwdriver has a handle and a shaft, ending in a tip the user puts into the screw head before turning the handle. The earliest documented screwdrivers were used in the late Middle Ages. They were probably invented in the late 15th century, either in Germany or France.
The tool used to drive a slotted screw head is called a standard, common blade, flat-blade, slot-head, straight, flat, flat-tip. Among slotted screwdrivers, variations at the blade or bit end involve the profile of the blade as viewed face-on (from the side of the tool). The more common type is sometimes called keystone, where the blade profile is slightly flared before tapering off at the end, which provides extra stiffness to the workface and makes it capable of withstanding more torque.
Description:
Suitable for work in confined spaces.
- treated highly alloyed steel
- short design
- chrome plated surface
- working part black finish
- ball-shaped with hexagonal cross-section
- resistant to oil and petrol
Technical Parameters:
| Blade diameter | 3.5 ÷ 6 mm | Shaft length | 35 mm | |
| For slot with length | 3.5 ÷ 6.5 mm | Handle size | 62 х 35 mm |
technical change and errors excepted
Manufacturer Code:
831001
