Twist drill is the most widely used drill in industrial manufacturing, and we generally use twist drill. The length to diameter ratio of the bit is calculated when the technician selects the most appropriate bit type for a specific hole mac···

1. Class II products should be used in general occasions, and Class II or Class III products should be used in places with good electrical conductivity such as damp places or metal frames. In metal containers, pipes, boilers and other narro···

Twist drill usesTwist drill use has a direct relationship with its style and type, the market has cobalt stainless steel twist drill, parabolic deep hole twist drill, gold twist drill, titanium plated twist drill, high-speed steel twist dri···

Electric tools mainly include electric drill, electric hammer, impact drill, curve saw, Angle grinder, marble machine, electric circular saw, cutting machine, electric planer, grinder and its related accessories.1. Power tools can be divide···

The principle of the electric hammer is that the driving mechanism is driven by the rotary motion of the drill bit, and a reciprocating hammer-strike movement perpendicular to the turning direction. The electric hammer is driven by the driv···

Personal protection, use a hammer at1, the operator should wear protective glasses to protect the eyes. When the face faces up, wear a protective mask.2. Earplugs are good for the long term, so as to reduce the effect of noise.3. The bit is···

Rotary hammer is a kind of electric tools, mainly used for drilling holes in concrete, floor, brick wall and stone. Professional in the wall, concrete, stone on the top of the hole, and multi-functional electric hammer, adjusted to the appr···

Drill can be divided into 3 categories: hand drill, impact drill, hammer drill.1. Hand Electric Drill: the least power, the scope of use is limited to drilling wood and as an electric screwdriver, not too much practical value.2. Impact Dril···