Productivity and cost are the biggest trends in drilling today. This means that drilling tools and bits of tungsten carbide bits need to be able to combine some operational mechanisms to develop tools to meet more and faster demand.

Should be based on carbide bitsdiameter, rock properties and production indexes of the drilling strata of the highest penetration (rate of penetration, back to the time, drilling footage) and economic indicators (drilling cost, use) choose the number of cutting tools, the blade on the drill bit size, welding Angle and blade Angle. The inside and outside of carbidedrills, the blade should be symmetrical and flat, and the welding should be firm, not qualified and not allowed to use. The old drills can be reused after being repaired. A needle carbide bit must not be shorter than 95mm. In the case of the diamond drill bit, the inner and outer edge should be consistent with the corresponding diamond bit.

The outer diameter of the hard alloy bit is not too large.

After carbidedrill is drilled into the hole, it should slow down and press the hole to the bottom of the hole, and gradually add enough pressure. When drilling into hard rock, it is strictly forbidden to speed up simply when the pressure is insufficient.

Reasonable control of the length of the return drill. According to the wear condition of the drill, improve the drilling technical parameters of the next time.

The remaining core of the hole must be handled with the old bit and must not be entered into the new bit.

If the drill is in the middle of the road, it may not be difficult to block, but it can be used to wiggle the drill pipe or drive car. The drill bit of a needle carbide drill can be stopped and the normal bit is changed when the above measures are taken.

When unscrewing the bit, hard alloy, alloy tire block or a flat bit are hard alloy. It is strictly forbidden to hammer a bit with a hammer.

Hard alloy bit is easy to change, the customer USES a bit to replace multiple tungsten drill bitscan drill several different size holes. In addition, it also reduces the cost of regrinding welding or solid carbide bits. End users only need to buy the hard alloy drill tip, which is about the same as the cost of regrinding welding or solid carbide.

Hard alloy drilling selection procedure

The diameter, depth and quality of the hole are determined

Production economy and cutting reliability should also be considered.

The diameter, depth and quality of the hole of the carbide drillsare selected

Select the type of bit

Step 2: select a bit for rough machining and/or machining holes. Check that the drill bit is suitable for the material of the workpiece, the quality of the hole and whether it can provide the best economy.

Hard alloy drill selection step - select bit type

Select the number and groove of carbidedrill bits

If the indexable blade bit is selected, the blade must be selected separately. Find the blade suitable for hole diameter and select the groove shape and number of the workpiece material. Select the appropriate number for the whole or welding carbide drill bit.

Hard alloy drill selection procedure - select the drill number and groove shape

Select the type of handle

Many drills have different installation methods. Find the type of machine tool.

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