Products Categories

KBD01 20V Cordless Drill Driver with Impact Fun...

KBD02 20V Cordless Drill Driver, 40N.m Max Torq...

KBD03 12V Compact Cordless Drill Driver, 25N.m ...

KCD330 18V Cordless Drill Driver Kit with Multi...

KBD05 20V Brushless Cordless Impact Drill, 45N....

KBD06 20V Compact Brushless Impact Drill, 55N.m...

KBD07 20V Professional Brushless Hammer Drill, ...

KBD08 20V Industrial Brushless Impact Drill wit...

12V Brushless Cordless Drill with 20+1 Torque &...

KBD31801 20V Brushless Impact Drill with Steple...

0102030405

7.2V Mini Grinder with Digital Display & Stepless Speed Control (6).jpg

7.2V Mini Grinder with Digital Display & Stepless Speed Control (5).jpg

7.2V Mini Grinder with Digital Display & Stepless Speed Control (1).jpg

7.2V Mini Grinder with Digital Display & Stepless Speed Control (2).jpg

7.2V Mini Grinder with Digital Display & Stepless Speed Control (4).jpg

7.2V Mini Grinder with Digital Display & Stepless Speed Control (3).jpg

7.2V Mini Grinder with Digital Display & Stepless Speed Control - Precision Tool from China Suppliers and Factory

Experience precision like never before with our 7.2V mini grinder, designed with a sleek, **appliance-inspired design** that caters to both DIY enthusiasts and professionals. This exceptional tool showcases an **innovative rotary dial for stepless speed control**, adjustable from 3,500 to 23,000 RPM, and features a **clear digital display** for instant speed feedback. The patented rotating metal four-jaw chuck guarantees superior high concentricity, making it a favorite among users. Crafted with durable aluminum housing and equipped with a circular LED light, this grinder is part of a comprehensive 50-piece kit that empowers you to achieve professional-grade results in grinding, carving, and polishing across various materials. As a leading **supplier** from **China**, our factory ensures that you receive top-quality products that meet your precision tool needs. Upgrade your toolkit with this unmatched mini grinder today!

PRODUCT DESCRIPTION

Advanced Interface with Stepless Speed & Digital Intelligence

This tool redefines user interaction by integrating a high-definition digital display with an analog-style stepless speed control dial. The rotary dial allows for infinitely variable speed adjustment from 3,500 to 23,000 RPM, offering unparalleled precision to match the perfect rotational force to any material or task. The accompanying digital screen provides instant, clear visual feedback on the selected speed setting. This intelligent interface, reminiscent of premium consumer electronics, delivers a level of control and clarity far beyond basic mechanical switches, empowering users to execute both delicate engraving and aggressive material removal with confidence.

7.2V Mini Grinder with Digital Display & Stepless Speed Control

Patented Precision Chuck System for Unmatched Stability

At the core of its performance is a patented rotating four-jaw metal chuck system. This advanced mechanism, constructed entirely of metal, provides superior clamping force and exceptional concentricity. The result is dramatically reduced vibration and bit runout, which translates to cleaner cuts, more precise carving lines, longer accessory life, and significantly less user fatigue. The system accommodates four collet sizes (1.0, 2.4, 3.0, 3.2mm) and features a convenient rotation lock knob for swift, secure, and tool-free accessory changes, making it a professional-grade solution for demanding applications.

Ergonomic, Durable Design with Comprehensive Kit Solution

Encased in a robust aluminum alloy housing, the tool combines durability with a refined, heat-dissipating structure. Its ergonomic, streamlined form ensures a comfortable grip during extended use. User experience is further enhanced by a 360° ring LED light that brightly and evenly illuminates the work area without shadows. A detailed 6-level LED battery indicator provides precise remaining runtime awareness. Offered as a complete kit with over 50 professional accessories—including grinding stones, diamond burrs, polishing wheels, and sanding drums—it provides an immediate, all-in-one solution for woodworking, metalworking, model making, and restoration projects.

Technical Specifications

Voltage: 7.2V Lithium-Ion
Battery Capacity: 1100mAh
Speed Control: Stepless Variable, 3,500 – 23,000 RPM
Display: Digital Speed Indicator
Chuck System: Patented Rotating Metal Four-Jaw Chuck (1.0, 2.4, 3.0, 3.2mm collets)
Key Feature: Appliance-Inspired Streamlined Aluminum Housing
Lighting: 360° Ring LED Work Light
Indicators: 6-Level Battery Status LED
Charging: Type-C Port
Product Weight: 0.271 kg
Customization: Full OEM/ODM support for housing design, display interface, and accessory kit configuration.

This mini grinder represents the convergence of intelligent design, precision engineering, and professional utility. Its digital-analog control interface, patented chuck system, and premium build quality make it a standout choice for discerning craftsmen and industries requiring reliable, high-precision rotary tool performance. We welcome collaboration to customize this advanced platform.

Frequently Asked Questions

1 What is the speed range of this 7.2V mini grinder, and can it be precisely adjusted?

Yes. The mini grinder features a stepless variable speed control dial that allows continuous, precise adjustment from 3,500 to 23,000 RPM. Unlike fixed-speed tools, the analog rotary dial provides infinite increments within this range, and the built-in digital display shows the exact speed setting in real time for full control over every task.

2 What collet sizes does the patented four-jaw chuck system support?

The patented rotating metal four-jaw chuck system supports four standard collet sizes: 1.0mm, 2.4mm, 3.0mm, and 3.2mm. This broad compatibility ensures the tool can accept a wide variety of rotary accessories and bits. Accessory changes are fast and tool-free thanks to the integrated rotation lock knob.

3 How is the battery charged, and how do I monitor remaining battery life?

The tool charges conveniently via a Type-C port, compatible with most modern chargers and cables. Battery status is monitored through a 6-level LED indicator on the tool body, which provides clear, segmented feedback on remaining runtime so you're never caught off guard during a project.

4 What accessories are included in the kit, and what applications is this tool suitable for?

The complete kit includes over 50 professional accessories such as grinding stones, diamond burrs, polishing wheels, and sanding drums. This makes it immediately ready for a wide range of applications including woodworking, metalworking, model making, jewelry crafting, and restoration projects, providing an all-in-one solution right out of the box.

5 Is OEM or ODM customization available for this mini grinder?

Absolutely. We offer full OEM/ODM support covering housing design and color, digital display interface, branding, and accessory kit configuration. Whether you need private-label packaging or a fully customized product for your market, our engineering team can work with your specifications to deliver a tailored solution.

6 How does the aluminum alloy housing and LED ring light improve the user experience?

The aluminum alloy housing provides excellent durability, effective heat dissipation during prolonged use, and a premium ergonomic feel that reduces hand fatigue. The 360° ring LED work light uniformly illuminates the work surface from all angles, eliminating shadows around the bit and allowing for greater accuracy and visibility—especially in tight or dimly lit workspaces.