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Abstract: Impact drill type is generally expressed by the diameter of the drill bit, there are 6mm, 8MMM, 10mm, 12mm, 14mm, 16mm and other models, different models are suitable for different scenarios, according to the operation object and hole diameter, processing materials, operating environment to choose the right model of impact drill. When you look at the specifications of impact drill bit, you should pay attention to the blade length, handle diameter and shape of impact drill. Let's take a look at the impact drill models.
First, there are several types of impact drilling bit
When purchasing a hammer drill, select the right hammer drill type based on the operation requirements. The hammer drill type is differentiated by the diameter of the drill bit.
The common impact drill on the market has the following models: 6mm, 8MMM, 10mm, 12mm, 14mm, 16mm, 20mm, 24mm, 26mm, 28mm, etc. There are certain differences in parameters of different models of impact drill, suitable for use in different scenarios.
Two, how to choose the right impact drill type
Choose the impact drill model, mainly according to the construction needs to choose the model, you can choose from the following three aspects:
1, according to the operation object and hole diameter selection
Interior decoration and layout of electrical appliances, the general use of nylon expansion bolts, hole diameter in 6 ~ 12mm, should choose 10, 12mm specifications of the impact drill; And in the construction, water and electricity installation and exterior wall decoration, the general use of M8 ~ M14mm metal expansion bolt, hole diameter between 12 ~ 20mm, should choose 16, 20mm specifications of the impact drill.
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2, according to the processing material selection
10, 12mm specifications impact drill impact frequency is high, suitable for processing brittle materials, such as ceramic tiles, red brick and other products. 16, 20mm specifications impact drill output power and torque is large, suitable for drilling in red brick, light concrete.
3. Choose according to the operating environment
10, 12mm specifications impact drill can be operated by one hand, suitable for climbing and drilling up. 16, 20mm specifications of the impact drill is equipped with a side handle and drilling depth ruler, can be operated with both hands, suitable for the ground and side hole.
Iii. What about the impact drill bit specifications and models
1, long blade
In the impact bit specifications and models table, the relevant blade lengths are marked for different types. The depth achieved by different blade lengths is different, so the length to be achieved needs to be selected according to the actual requirements. Failure to reach the length of the impact bit can affect progress and even damage the bit.
2, shank diameter
The length of handle diameter is also the choice of model specifications must pay attention to the details. Different specifications and models for the handle diameter some same, some differences, so need to carefully choose. For example, the blade diameter is point four and point five, and the handle diameter of the two is the same. If the blade diameter is 0.6 and 0.7, then the handle diameter is 3.5.
3, impact drill type and pattern
Different types of impact drill design its pattern is different. This will be reflected in some of the more complete model specifications. Common patterns have twist metal bit design, flat head drill flower blunt design and head four cut Angle design, different patterns can achieve the impact strength and effect is completely different, must be based on the need to choose the right bit and model. For example, for ceramic tile drilling, you can choose the head of the four corners of the drill; For drilling wood with higher hardness, twist metal head drill can be selected. In general, twist shaped metal bits are the most common.