1. Introduction
This manual provides detailed instructions for the safe and effective operation, maintenance, and troubleshooting of your VEVOR DSM1-100008B Digital Torque Screwdriver and the accompanying Vibra-TITE VC-3 Threadmate. Please read this manual thoroughly before use to ensure proper function and to prevent damage to the product or injury to yourself.

Image 1.1: VEVOR Digital Torque Screwdriver and Vibra-TITE VC-3 Threadmate components.
2. Safety Instructions
Always observe the following safety precautions to reduce the risk of injury or damage.
- Read all instructions: Familiarize yourself with the operation and safety guidelines before using the tools.
- Wear appropriate personal protective equipment (PPE): This includes safety glasses to protect against flying debris.
- Keep work area clean and well-lit: Cluttered or dark areas invite accidents.
- Do not over-tighten: The digital torque screwdriver is designed for precise torque application. Exceeding specified torque values can damage fasteners or components.
- Store tools properly: Keep the screwdriver and threadmate out of reach of children and in a dry, secure location.
- Vibra-TITE VC-3 Threadmate: Contains Methyl Ethyl Ketone. Use in a well-ventilated area. Avoid contact with skin and eyes. In case of contact, rinse immediately with plenty of water and seek medical advice. Keep away from sources of ignition.
3. Package Contents
Verify that all items listed below are present in your package:
- 1 x Tool Box
- 1 x Digital Torque Screwdriver (DSM1-100008B)
- 1 x 60 mm Extended Rod
- 2 x AAA Battery
- 3 x Flathead Bits (CR-V6, CR-V4, CR-V3 or SL-6, SL-4, SL-3)
- 3 x Cross Bits (S2-PH0, S2-PH1, S2-PH2)
- 3 x Hexagon Bits (5/64, 3/32, 5/32)
- 3 x Plum Blossom Bits (T10, T15, T20)
- 1 x Vibra-TITE 213 VC-3 Threadmate (5mL Tube)

Image 3.1: The VEVOR Digital Torque Screwdriver, its protective case, and included bit set.
4. Product Overview
4.1. VEVOR Digital Torque Screwdriver
The VEVOR DSM1-100008B is a 1/4" drive digital torque screwdriver designed for precise torque application. It features a digital display for clear readings, multiple operating modes, and a quick-release mechanism for bit changes.
- Digital Display: Provides real-time torque values with backlight for visibility in various lighting conditions.
- High Accuracy: Offers up to ±2% accuracy, reducing the risk of misoperation.
- Preset Modes (P1-P8): Allows users to save and quickly access frequently used torque values.
- Real-Time & Peak Mode: Real-time mode displays current torque, while peak mode records the maximum torque achieved.
- Quick Release Design: Facilitates easy and tool-free bit changes.

Image 4.1: A user demonstrating the VEVOR Digital Torque Screwdriver in use.

Image 4.2: The digital display of the torque screwdriver showing different measurement units.
4.2. Vibra-TITE VC-3 Threadmate
Vibra-TITE VC-3 Threadmate is a locking and sealing coating for threaded fasteners. It prevents fasteners from loosening due to vibration and shock by creating friction through viscosity. It is designed for use on various materials and finishes, dries quickly, and allows for adjustment, removal, and reuse of coated parts.
- Prevents Loosening: Effective against shock and vibration.
- Adjustable & Reusable: Coated parts can be adjusted, removed, and reused with standard tools.
- Fast Drying: Dries to the touch within seconds, ready for assembly in minutes.
- Versatile: Adheres to ferrous and non-ferrous metals, most platings, wood, and plastic screws.

Image 4.3: The Vibra-TITE VC-3 Threadmate 5mL tube.
5. Setup
5.1. Digital Torque Screwdriver
- Battery Installation: Open the battery compartment, insert the two AAA batteries provided, ensuring correct polarity. Close the compartment securely.
- Attaching Bits: Insert the desired 1/4" bit into the screwdriver's quick-release chuck. Ensure it is fully seated and locked into place. For extended reach, attach the 60mm extended rod first, then the bit.
5.2. Vibra-TITE VC-3 Threadmate
- Preparation: For optimal performance, wipe off any visible oil, grease, or dirt from the fastener threads. Pre-cleaning with solvents is generally not required.
- Application: Shake the tube well before use. Apply a thin, even coating of VC-3 Threadmate to the threads of the fastener.
6. Operating Instructions
6.1. Digital Torque Screwdriver Operation
- Power On/Off: Press the power button to turn the screwdriver on. It will automatically power off after a period of inactivity to conserve battery.
- Unit Selection: Use the unit button to cycle through available torque units (e.g., in-lbs, N.m, ft-lb, kg-cm).
- Setting Torque Value: In setting mode, use the up/down arrows to adjust the target torque value. The display will indicate the set value.
- Preset Modes (P1-P8): Access preset functions to quickly recall stored torque values. Refer to the on-screen prompts for saving and recalling presets. The device can store up to 500 sets of values.
- Real-Time (Track) Mode: In this mode, the display shows the current torque being applied. This is suitable for monitoring torque during tightening.
- Peak Mode: In this mode, the display captures and holds the maximum torque value applied during the operation. This is useful for verifying peak torque.
- Applying Torque: Apply steady pressure and rotate the screwdriver. The digital display will show the torque value. An audible and/or visual indicator will signal when the target torque is reached.
- Quick Release: To change bits, pull back the quick-release collar, remove the current bit, and insert a new one. Release the collar to lock the new bit in place.
6.2. Vibra-TITE VC-3 Threadmate Application
- Apply Coating: After preparing the fastener, apply VC-3 Threadmate to the threads. Ensure 30-50% of the thread root area is covered for optimal performance.
- Drying Time: Allow the coating to dry to the touch within seconds. For full cure and assembly, allow 10-30 minutes, depending on ambient conditions and coating thickness. Consider using considerable airflow and temperatures not exceeding 130°F for bulk production drying.
- Assembly: Once dry, assemble the coated fastener. The material will cold flow, providing a slow, fluid release rather than a distinct breakaway torque.
- Reusability: Fasteners coated with VC-3 can be adjusted, removed, and reused 5 or more times using standard hand tools. Reapply if necessary after multiple reuses.

Image 6.1: Demonstrating the application of Vibra-TITE VC-3 Threadmate to a screw.

Image 6.2: Fasteners with Vibra-TITE VC-3 Threadmate applied to their threads.
7. Maintenance
- Cleaning: Wipe the digital torque screwdriver with a clean, dry cloth after each use. Do not use abrasive cleaners or solvents.
- Storage: Store the screwdriver in its protective case in a dry environment, away from direct sunlight and extreme temperatures. Store Vibra-TITE VC-3 Threadmate in a cool, dry place.
- Battery Replacement: Replace AAA batteries when the low battery indicator appears on the display.
- Calibration: For professional applications requiring certified accuracy, periodic calibration of the torque screwdriver by a qualified service center is recommended.
8. Troubleshooting
- Screwdriver not powering on: Check battery installation and ensure batteries are not depleted. Replace if necessary.
- Inaccurate torque readings: Ensure the correct unit is selected. Verify the bit is properly seated. If issues persist, consider professional calibration.
- Threadmate not holding: Ensure threads were clean before application. Allow sufficient drying time before assembly. Apply a sufficient amount of threadmate (30-50% thread root area).
- Display issues: If the display is dim or flickering, replace the batteries.
9. Specifications
9.1. VEVOR Digital Torque Screwdriver (DSM1-100008B)
| Feature | Specification |
|---|---|
| Item Model Number | DSM1-100008B |
| Type | Digital |
| Torque Range | 2.65-70.67 in-lbs / 0.3-8 N.m |
| Torque Accuracy | ±2% |
| Torque Increment | 0.01 N.m |
| Bit Size | 1/4" |
| Net Weight | 1.74 lbs / 0.79 kg |
| Product Size | 8.74" x 1.69" x 1.63" / 222 x 43 x 41.5 mm |
| Power Source | 2 x AAA Batteries |
9.2. Vibra-TITE VC-3 Threadmate
| Feature | Specification |
|---|---|
| Product Name | Vibra-TITE 213 VC-3 Threadmate |
| Volume | 5mL Tube |
| Temperature Range | -65 to 165 Degree F |
| Color | Red |
| Drying Time (to touch) | Seconds |
| Drying Time (for use) | Minutes |
| Shelf Life (in tube) | 5 years from manufacture date |
| Shelf Life (after applied) | Indefinite |
| Reusability | 5 or more times |
| Contains | Methyl Ethyl Ketone |
10. Warranty and Support
For warranty information or technical support, please refer to the VEVOR official website or contact their customer service directly. Keep your purchase receipt as proof of purchase.





