Currently, spiral jack manufacturers commonly use 45 steel material when manufacturing handles, which is also known as oil steel. Among many types of steel, it belongs to the ordinary low-grade steel. However, due to its good toughness, plasticity, and extremely high strength, it fully meets the requirements for the use of jack handles.

Before using a screw jack handle to lift heavy objects, we can first observe whether there are cracks, rust, wear, defects, uneven rough surfaces, and other issues on the surface of the handle. If there are too many faults, it may indicate that a lot of impurities were added during the manufacturing process, or it may have been made with rough equipment, or it may have been caused by improper use by the operator. For handles with obvious defects, their performance cannot be guaranteed.

In addition, the corrosion resistance of 45 steel material is far different from that of stainless steel material. If the operator needs to operate in extremely hot or high-temperature environments or frequently press the handle, considering the problem of excessive sweating and easy corrosion of the handle, it is entirely possible to customize a stainless steel handle from the manufacturer of the spiral jack.