Wear protective clothing and safety glasses to prevent injury from metal shavings.
Operate only when the product is correctly installed to avoid hazards.
Disconnect power before installing or removing the drill bit.
Beware of heat generated during drilling to prevent burns and environmental impact.
Do not modify the product to avoid unpredictable accidents.
Never touch the rotating drill bit by hand.
Stop operation immediately if abnormal vibration or noise occurs; inspect or replace the drill bit.
Thoroughly read the drill bit and machine manuals before use.
4. Installation Types
Right-angle shank installation
Universal shank installation
Four-hole shank installation
Workpiece lateral fine adjustment locking
5. Cutting Fluid Types and Selection
Item
Detail
Water-based coolant
Typically 95% water and 5% cutting fluid concentrate; commonly used.
Oil-based coolant
Excellent overall performance but higher cost.
6. Common Issues and Solutions
Chip jamming:
1. While motor is running, gently press the core material several times to loosen and eject.
2. Tap the drill bit body gently with a non-metallic tool around the edges until the core ejects.
3. Use pliers to grip the core without touching cutting edges and rotate along the spiral groove to remove.
4. Remove drill bit and tap ejector pin gently to push out the core.
Abnormal chip color
If chips turn blue-black under normal cooling, inspect cutting edges.
When maximum wear width reaches 0.5mm, regrinding is recommended.
7. Usage Tips
Follow instruction manual parameters strictly.
Remove chips promptly using a long-handled iron hook, especially for deep or large holes, to prevent chip clogging and edge chipping.
Use internal cooling system with specialized coolant emulsion under pressure for deep hole drilling to ensure sufficient cooling and chip evacuation.
Employ peck drilling method (intermittent feed with periodic retraction) to break chips and clear the hole bottom, preventing chip accumulation.
Stop drilling immediately if chip evacuation is poor; use peck drilling and other methods to ensure smooth chip removal and avoid poor hole quality or drill damage.
8. Recommended Operating Parameters for Carbide Steel Plate Drills (Speed in RPM):
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