Clarke 6500940 DGA1 Drill Grinding Instructions
![Clarke 6500940 DGA1 Drill Grinding Attachment manual cover](/images/VKpJoyAKMHXdizdFUxLeDwyP/thumbs/thumb175x175.webp)
Begin by securing the attachment to your bench grinder with the mounting bolts provided. Adjust the angle setting to match the drill bit's point angle, usually 118 degrees for standard bits. Ensure the drill bit is held securely in the chuck before starting the grinder.
Insert the drill bit into the chuck, ensuring it's centered and protrudes evenly from the holder. Adjust the position so that the tip of the drill is aligned with the grinding wheel at the correct angle. Tighten the chuck to secure the bit.
To achieve accurate sharpening, ensure that the drill bit is positioned correctly in the chuck and that the angle adjustment is set to match the drill's original point angle. Regularly check the alignment and positioning during the sharpening process.
Regularly clean the attachment to remove metal shavings and debris. Lubricate moving parts as needed to ensure smooth operation. Check for wear or damage, especially on the chuck and angle adjustment components, and replace parts if necessary.
Uneven sharpening may occur if the drill bit is not positioned correctly or if the angle setting is incorrect. Recheck the alignment of the drill bit and adjust the angle setting to ensure it matches the drill's point angle. Ensure the bit is securely held in place.
The Clarke 6500940 DGA1 is designed primarily for standard twist drill bits. It may not be suitable for specialized bits like masonry or step drill bits unless specified by the manufacturer. Always check compatibility with your drill bit type.
Wear safety goggles to protect your eyes from metal shavings. Ensure the drill bit is secured tightly to prevent it from flying out during operation. Keep hands clear of the grinding wheel and use the tool rest for stability.
To adjust the point angle, loosen the angle adjustment knob and set it to the desired angle, commonly 118 degrees for general-purpose bits or 135 degrees for harder materials. Retighten the knob to secure the setting.
If the drill bit is not held securely, check the chuck for wear or damage. Ensure that the chuck is clean and free of debris. Tighten the chuck appropriately, and if the problem persists, consider replacing the chuck.
After use, wipe down the attachment to remove dust and metal shavings. Apply a light coat of oil to prevent rust on metal parts. Store the attachment in a dry, covered area to protect it from moisture and dust.