There are many types of center drills bits
The main function of center drills is to guide twist drills bits for hole processing
The function reduces errors during processing and provides convenience for other drilling equipment
Earlier we introduced the type of center drill, click here know more!
The Center Drill Bit is Used to Drill the Center Hole of the Bench Drill
The pecking method is used, the feed amount should not be too large. With the bench drill, you can grasp the cutting amount at any time.There is no problem with drilling
If the two countersinks are to be coaxial, a very good reversing jig is required. It is not a problem of processing but a problem of clamping. Doing it on the machining center also depends on the fixture
If the position of the bench drill hole is strict, you can first clamp a pointed reamer or a pointed tip on the collet of the bench drill to hold the punched center hole, and then, or press to process work, or just change the drill bit directly
The Big Bit Adopts the Center Drilling Structure
It has a good centering effect, thereby ensuring good straightness of the hole position. The inside and outside blades adopt a replaceable smallholder structure
In actual use, the outer blade holder is more likely to be damaged. By replacing the small tool holder, the scrap of the whole drill is avoided, and the tool cost is saved
By adjusting the outer tool holder, the drill processing size can be changed within 0-5 mm; the tool head and tool holder adopt a combined structure
For Different Depths of Holes, You Only Need to Change the Shanks of Different Lengths
The drill has a central outlet hole, which can better cool the blades, extend the life of the blades, and facilitate chip removal
Indexable carbide inserts are used for cutting, with higher speed and feed, and the hole wall finish is greatly improved
During the processing, the iron chips are in the chip-breaking state, and there is no slender winding iron chips of the traditional twist drill, and the safety is greatly improved and the automatic continuous feeding does not need to retract the chips every time, and the efficiency is greatly improved
The Center Drill Bit is a Kind of Prefabricated Precise Positioning Instrument Used for Hole Processing to Reduce Errors
When finding a hole, when you are using a traditional drill, it will indefinitely find the position you are looking for
If that is the case, over time, human, material, and financial resources will continue to be consumed
How Can you Accurately Locate the Hole’s Destination?
A-type center drills can save workers from wasting time and manpower like traditional tools Material and financial resources can find an accurate location, and it is safe and not easily damaged, which can effectively ensure the safety of users during use
Before Machining the Center Hole, We can Flatten the End Face of the Shaft to Prevent the Center Drill From Breaking
Generally, the peak angle of the standard center drill is 118 degrees
In fact, the function of the center drill is not just a fixed point function