28
2025
-
08
The difference between tapered drill bits and threaded drill bits
Author:
In the field of rock drilling and drilling, thread bits and taper bits are two important types of drill bits, each with unique design features and application scenarios. Below, we will provide a detailed introduction to the differences between these two types of drill bits and their application scenarios.
Conical drill bit:
1. There are no threads inside.
2. Usually used for drilling softer rock layers, paired with tapered drills.
3. Suitable for drilling operations that require high-precision positioning, such as geological exploration and light drilling operations.
4. Relatively short pants body
5. The overall size of tapered drill bits is relatively small, with a diameter range generally between 28-42 mm.
Threaded drill bit:
1. There are threads inside.
2. Usually used for drilling hard rock layers, paired with threaded drill rods.
3. Suitable for occasions that require high-intensity drilling, such as mining and construction.
4. The library is relatively long.
5. The diameter range of threaded drill bits is generally between 33-127 cm.
Application scenarios of tapered drill bits:
1. Geological exploration: used for shallow drilling in geological exploration.
2. Lightweight drilling: suitable for handheld and air leg lightweight rock drills for drilling operations.
3. Soft rock layer: suitable for drilling softer rock layers such as shale and mudstone.
Application scenarios of threaded drill bits:
1. Hard rock layer: suitable for drilling hard rock layers such as limestone and granite.
2. Heavy duty drilling: suitable for drilling operations carried out by heavy-duty drilling machines.
3. Mining: Used for drilling and blasting operations in mining.
4. Construction: Drilling holes used in foundation engineering during construction.
Usage:
Threaded drill bits are usually used in conjunction with threaded drill rods, fixed by screwing the threads counterclockwise.
The overall size of threaded drill bits is relatively large, with a diameter range generally between 33-127 mm, so they are generally longer.
Threaded drill bits are commonly used in hydraulic rock drills and are suitable for situations that require high-strength drilling.
Conical drill bits are usually used in conjunction with taper rods, and commonly used taper drill rods include 7 degrees, 11 degrees, 12 degrees, etc.
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