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  • Drilling Method & Precautions of Ceramic Tile

    Drilling method of ceramic tile: 1. The following tools shall be prepared for drilling ceramic tiles: lithium electric hammer, glass drill bit, water and sealing glue. 2. Select the appropriate position on the perforated ceramic tile, and check whether there is hollowing in the ceramic tile at th...
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  • Material Category and Selection Criteria of Drill Bit

    Selection criteria of bit material: Drilling operation is essentially a kind of cutting process. The prerequisite to complete the cutting process is that the hardness of the tool material must be higher than that of the processed material. Material category of drill bit: The material of drill bit...
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  • Introduction to Drill Bit Types

    Drill bit is a tool with rotating head and cutting ability. It is generally made of carbon steel or high-speed steel, milled or rolled, and then ground after quenching and heat treatment. It is used for drilling on metal or other materials. It has a wide range of applications and can be used in d...
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  • How to Avoid Broken When Drilling Holes in Tiles

    When using electric hammer to drill holes in ceramic tile wall, we can try two relatively simple operation methods to avoid ceramic tile damage. One is to simply treat the ceramic tile surface first to prevent cracking. The other is to use a special tile drilling tool to make holes, and then use ...
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  • How to Use Percussion Drill

    1. Before operation, check whether the power-supply is consistent with the conventional rated 220V voltage on the electric tool, in order to avoid being wrongly connected to the 380V power supply. 2. Before using the percussion drill, please carefully check the insulation protection of the machin...
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  • Common Problems of Woodworking Cutter Row Drill

    In the furniture industry, the common types of drilling tools are: Row drill (including lengthening drill), four edge drill (also called split drill), step drill, countersink drill, countersink drill sleeve, salad drill, screw tail drill, twist drill and etc. Let’s start with the lower row ...
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  • What Kind of Drill Bit Does Percussion Drill Need?

    Percussion drill is a kind of equipment for clamping percussion electric drill bit. It is used for drilling concrete foundation, wall, brick wall, granite and installing expansion bolts, plastic expansion pipes and other fasteners in the hole. So, do you know what type of percussion bit? Impact d...
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  • Problems and Solutions for Processing Twist Drill Bit

    1. The accuracy of the hole is high and no suitable twist drill bit can be found. The high accuracy of hole is a hard problem. The only way to solve it is to customize the proper cutting edge. Of course, we need to find a fast twist drill bit manufacturer. 2. Is the drill bit easy to be blackened...
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  • Three Main Materials of Hole-Cutting Tool Twist Drill Bit

    The material selection of twist drill bit is mainly divided into three types (high speed steel, cobalt containing high speed steel and hard alloy). High speed steel twist drill bit: since 1910, high speed steel has been used as cutting tool for more than 1 century. It is the most widely used and ...
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  • Five most Commonly Used Material of Twist Drill Bit

    For twist drill bit, coating has three main functions, the first wear-resistant, second lubrication, third is conducive to smooth chip removal, the main advantage is durable. The first kind of coating is called “no coating”, which is the natural cutter. The drill bit without coating i...
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  • Relationship between Geometric Angle and Precision of Twist Drill Bit Ⅲ

    5. Transverse edge angle The cross blade is a cutting edge perpendicular to the axis of twist drill bit. The angle of the cutting edge includes the oblique angle of the transverse blade, the front edge of the transverse blade and the back angle of the transverse blade. (1) The oblique angle of th...
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  • Relationship between Geometric Angle and Precision of Twist Drill Bit Ⅱ

    3. Posterior angle The back angle of any point of the cutting edge is the included angle between the cutting plane and the back face of the point. The back angle of a bit is not measured in the main section, but in the assumed working plane (feed section). In the process of drilling, this back an...
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