VEVOR Drill Bits Sharpener MR-13D User Manual

1. Introduction

The VEVOR MR-13D Drill Bits Sharpener is designed for professional and efficient sharpening of drill bits ranging from Φ3mm to Φ13mm. This machine accurately restores the point angle, lip relief angle, and front cutting edge of your drill bits, ensuring optimal sharpness and precision for various drilling tasks. Equipped with a high-speed motor and a durable CBN grinding wheel, it provides fast and reliable performance for workshops, garages, and DIY projects.

Figure 1: VEVOR MR-13D Drill Bits Sharpener with key features highlighted.

2. Safety Instructions

To ensure safe operation and prevent personal injury or damage to the machine, please read and follow all safety instructions carefully before using the VEVOR MR-13D Drill Bits Sharpener.

• Always wear appropriate personal protective equipment, including safety glasses, to protect against flying debris.
• Ensure your work area is clean, well-lit, and free from clutter to prevent accidents.
• Keep children and unauthorized personnel away from the operating machine.
• Do not operate the sharpener in damp or wet conditions.
• Before performing any maintenance, adjustments, or when not in use, always unplug the machine from the power source.
• Inspect the machine for any damage before each use. Do not operate if any part is damaged.
• Use only VEVOR-approved accessories and replacement parts.
• Maintain a firm grip on the drill bit and collet chuck during sharpening.
• Avoid touching the grinding wheel during operation or immediately after use, as it may be hot.

3. What's in the Box

Carefully unpack the contents and ensure all items are present and undamaged. If any items are missing or damaged, please contact VEVOR customer support.

• 1 x CBN Grinding Wheel (pre-installed)
• 11 x Elastic Collets (Φ3, Φ4, Φ5, Φ6, Φ7, Φ8, Φ9, Φ10, Φ11, Φ12, Φ13)
• 1 x M2.5 Allen Wrench
• 1 x M3 Allen Wrench
• 1 x Collet Chuck (Φ3-Φ13)

Figure 2: Included components and accessories.

4. Setup

4.1 Unpacking and Inspection

Remove all packaging materials. Inspect the sharpener and all accessories for any signs of damage during transit. Report any damage immediately to your supplier.

4.2 Placement

Place the drill bit sharpener on a stable, level, and clean workbench or surface. Ensure there is adequate space around the machine for safe operation and ventilation.

4.3 Power Connection

Connect the power cord to a suitable electrical outlet. Ensure the power switch on the machine is in the 'OFF' position before plugging it in.

4.4 Collet Installation

Select the appropriate elastic collet that matches the diameter of the drill bit you intend to sharpen. Insert the collet into the collet chuck. The collets are designed to fit snugly. The sharpener includes 11 collets for drill bit sizes from Φ3mm to Φ13mm.

Figure 3: Collet storage and selection.

5. Operating Instructions

The VEVOR MR-13D offers precise control over sharpening angles to match various drill bit requirements.

5.1 Understanding Drill Bit Angles

The sharpener allows adjustment of three critical angles:

• Point Angle: The angle formed by the cutting edges at the tip of the drill bit. Adjustable from 95° to 135°.
• Lip Relief Angle: The angle that provides clearance behind the cutting edge.
• Front Cutting Lip: The primary cutting edge of the drill bit.

Figure 4: Adjustable drill bit angles.

5.2 Adjusting Angles

• For Lip Relief Angle: Move the small block outward for a smaller angle or inward for a larger angle.
• For Front Cutting Lip: Loosen the side screw, hold the positioning pin, and rotate it to adjust.
• For Point Angle (95°-135°): Use the adjustment dial or lever on the machine to set the desired point angle.

5.3 4-Step Easy Drill Bit Sharpening Process

1. Step 1: Choose the appropriate collet. Select the collet that precisely matches the diameter of the drill bit to be sharpened. Insert the drill bit into the chosen collet and then into the collet chuck.
2. Step 2: Adjust the position according to the drill bit size. Secure the drill bit in the collet chuck, ensuring it is properly aligned and extends to the correct length for sharpening.
3. Step 3: Insert collet chuck based on grinding hole's parallel line. With the machine powered on, carefully insert the collet chuck with the drill bit into the designated grinding hole, aligning it with the parallel line indicator.
4. Step 4: Rotate 180° to complete the sharpening. Gently rotate the collet chuck 180 degrees, applying light pressure, to sharpen both cutting edges of the drill bit. Remove the drill bit and inspect its sharpness. Repeat if necessary.

5.4 Official Product Video

Video 1: Official VEVOR demonstration of efficient and precise sharpening with the MR-13D.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your VEVOR Drill Bits Sharpener.

• Cleaning: After each use, unplug the machine and use a soft brush or compressed air to remove grinding dust and debris from the machine, especially around the grinding wheel and collet areas.
• Grinding Wheel Inspection: Periodically inspect the CBN grinding wheel for wear or damage. A worn wheel will reduce sharpening efficiency. Replace the grinding wheel if it shows significant wear or damage.
• Storage: Store the sharpener in a clean, dry place, away from direct sunlight and moisture. Keep all collets and accessories organized.

7. Troubleshooting

Refer to the following table for common issues and their potential solutions:

8. Specifications

Figure 5: Front view of the VEVOR MR-13D.

9. Warranty and Support

VEVOR products are designed for durability and performance. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official VEVOR website. Please have your model number (MR-13D) and purchase date available when contacting support.