Hole Drilling Operation Of HSS Cobalt Dril Bit

  • Drilling operation is essentially a kind of cutting processing. The prerequisites to complete cutting processing are: the hardness of the tool material must be higher than the hardness of the processed material (this is necessary, otherwise the processed material cannot be operated) . The first is to drill holes in wooden materials, combined with woodworking drills. Woodworking drills have a large sales volume and do not require high tool hardness. The tool materials is HSS Cobalt Drill Bit .

    The second type is to drill holes in general metal materials, namely alloy steel, non-alloy steel, cast iron, cast steel, non-ferrous metals, etc., and use metalworking drill bits. The drill bit material is generally high-speed steel (advanced tools contain element cobalt HSS-Co) .

    The third is to drill holes in concrete materials and stone materials, using percussion drills to match masonry bits, and the material of the cutter head is generally cemented carbide.

    The fourth type is to use ceramic tile drills to drill holes on ceramic tiles or glass with higher hardness. The tool material is usually tungsten carbon alloy. Use without impact.

    Finally, some conclusions:

    When we do not drill holes on cement walls in ordinary homes, we use ordinary 10mm hand electric drills, and a slightly better drill bit is enough; if you want to drill holes on cement walls, you need to buy a belt Impact drills and matching drills are now available. Common drill bit specifications are (3, 4, 5, 6, 8, 10).

    Drill holes in metal materials, and the speed should not be too high, otherwise the blade of the drill will be easily burnt. The harder the tool, the worse the toughness, the thinner the bit, the worse the rigidity.

    In household decoration, an electric drill or percussion drill with a general power of about 400W is sufficient. Generally, when drilling a hole, it is necessary to punch the hole first to prevent the drill from running off the direction at the beginning.