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  • Notes on the use of bimetallic
    • Jul 15, 2020

    Notes on the use of bimetallic hole Saw:1. make sure the opener is jammed and clamped and then idling to confirm the swing.2. to confirm the direction of rotation, must be clockwise rotation (positive), to confirm that the revolutions per minute and the opening of the diameter of the cutting material is appropriate.3., the opening should be perpendicular to the cutting material surface, especially...

  • Drill bit usage and instructions
    • Jul 15, 2020

    The metal drill bit set is used to drill out the through hole or blind hole on the solid material, and can extend the tool to the existing hole. The commonly used drills are mainly twist drills, flat drills, center drills, deep hole drills and casing drills. Reaming drill and countersink drill is not in solid material drilling, but it is also customary to put them in a bit.Twist drillA twist drill...

  • Comparative advantages of pneumatic tools and power tools
    • Jul 15, 2020

    1. according to the weight to volume ratio, the output power is large, in the same output power, than the power tools smaller and lighter.2. there is no overload fault even if the pneumatic tool is overloaded. The tool is only stopped, once the overload is removed the phenomenon to restore the normal operation of the tool is no effect, any fault will not occur; and if the electric tools work overl...

  • Introduction of woodworking drill.
    • Jul 15, 2020

        Accurate drilling technology is the first to learn in woodworking technology. Modern technology has made it easy to finish. The traditional bit is a twist drill. The wood can be drilled out of hole with drill. Holes can also be produced by scraping the flat drill. It is specially designed for power tools.    There are holes saw, aircraft drill, hole opener and so on, modern...

  • Classification of drill bits
    • Jun 03, 2020

    A drill is a tool with rotating and cutting ability at the end. It is usually made of carbon steel SK or high speed steel SKH2, SKH3, etc. after milling or rolling, quenching and heat treatment, and then grinded. It is used for drilling on metals or other materials. It can be used in drilling machine, lathe, milling machine, hand drill and other tools. Bits can be divided into the following types ...

  • Some knowledge about drilling
    • Jun 03, 2020

    1. why the lower the required speed of the same type of hole opener?Pistol drill or drill speed display is generally RPM or r/min, is the speed per minute. But the speed at which each tooth turns is called linear speed. Line speed = speed * radius *2*. That is, the greater the diameter, the longer the path of each ring and tooth tip. The higher the friction and heat, the more easily the tip of the...

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