1. Tape measure
Tape measure is a common measuring tool in daily life. What we often see is a steel tape measure, which is often used in construction and decoration, and is also one of the necessary tools for families. Divided into fiber tape measure, tape measure, waist measure and so on. Lu Banchi, Feng Shui ruler and secretary also belong to steel tape measure.
The tape measure can be rolled up because it has a spring. When measuring the length, the length of the ruler and the spring is actually lengthened. Once the measurement is completed, the spring in the tape measure will automatically shrink, and the ruler will also shrink under the action of the spring force, so the tape measure will be rolled up.
2. Grinding wheel
Grinding wheel, also known as consolidated abrasive, is a consolidated abrasive with a certain strength, in which ordinary abrasive is consolidated into a certain shape (mostly round with a through hole in the center) by binder. It is generally composed of abrasive, binder and pores, and is often called the three elements of consolidated abrasive. According to the different classification of binders, there are ceramic (binder) grinding wheels, resin (binder) grinding wheels and rubber (binder) grinding wheels. Grinding wheel is one of the most widely used grinding tools. When in use, it rotates at a high speed, and can perform rough grinding, semi-fine grinding, fine grinding, grooving and cutting on the outer circle, inner circle, plane and various contours of metal or nonmetal workpieces.
3. Manual wrench
Manual wrenches, also called ordinary wrenches, are mainly used in daily life and work. Their uses are relatively simple, mainly divided into single-headed wrenches, double-headed wrenches, adjustable wrench, ring wrenches, multi-purpose wrenches, percussion wrenches, socket wrenches, socket wrenches, torque wrenches, cross wrenches, ratchet wrenches, hook wrenches, hexagon wrenches, hexagon wrenches, manual clutch torque wrenches, pipe wrenches and T-wrenches. Torque wrenches are divided into message wrenches, pointer wrenches and digital display wrenches.
4. screwdriver
A screwdriver is a tool for screwing screws. It usually has a thin wedge-shaped head, which can be inserted into the groove or notch of the screw head ―― it is called "screwdriver" in Beijing-Tianjin-Hebei, Jin Lu, Shaanxi and northern Henan dialects, more commonly known as screwdriver in northern Henan, screwdriver in Jiangxi, Anhui, Hubei, southern Henan and Guanzhong of Shaanxi, screwdriver change in the central and western regions and screwdriver in the Yangtze River Delta region.
There are two main types: the word (minus sign) and the cross (plus sign). There are also common hexagonal screwdrivers, including hexagon socket and external hexagon.