China Manufacture Cheap Price Carbide Long Spot Drills

The main advantages of Center Drill are as follows:

1. Precise positioning, preventing the main drill from deviating

The center drill can create an accurate center hole before the processing of rotating parts, providing a reliable reference for subsequent drilling or turning operations, and preventing the drill bit from slipping or being eccentric on the workpiece surface.

2. Facilitate subsequent top-notch support and enhance processing stability

During lathe processing, the center rest at the tailstock can be inserted into the center hole to support the workpiece, reducing the workpiece's swing caused by overhang or heavy cutting, and improving the workpiece's coaxiality and surface finish.

3. High rigidity, suitable for high-speed cutting

The center drill is short, thick and strong with high rigidity, making it suitable for drilling at high speeds with short feed rates. It is less likely to break and has high processing efficiency.

4. Standardized hole types, compatible with various machine tools

Center drills typically have standard 60°/90° angles, enabling the rapid and stable creation of standard center holes. They are widely used in CNC lathes, ordinary lathes, and other equipment.

5. Simultaneous processing of pilot holes and chamfers

Some center drills feature a pilot drill and a conical chamfer section, allowing for the completion of two processes (pre-drilling + chamfering) in one operation, which enhances efficiency and reduces tool changes.

Application:

Center hole processing before CNC lathe machining

End positioning of precision shaft parts

Processing high-precision rotating parts (such as motor shafts, lead screws, and gear shafts)

Manufacturing of the center reference hole of the mold