Mini Pneumatic Die Grinder Kit 70000 RPM | 1/4in Pencil Grinder

Mini Pneumatic Pencil Die Grinder Kit – 70,000 RPM Precision Tool

Take your grinding, polishing, and engraving projects to the next level with this high-speed Mini Pneumatic Die Grinder Kit. Engineered for precision and versatility, this compact air-powered pencil grinder delivers an impressive 70,000 RPM no-load speed with stepless speed regulation — giving you total control whether you're working on metal, wood, automotive parts, or detailed molding work.

Key Features

• Dual Collet Included: Comes equipped with both a 2.38mm and a 3mm collet, making it compatible with a wide range of grinding bits and accessories for molding, automotive, metalwork, and woodworking applications.
• Versatile Multi-Function: Ideal for grinding, polishing, deburring, drilling, engraving, and cutting tasks — a true all-in-one precision air tool for the workshop or job site.
• High-Efficiency Performance: The 70,000 RPM speed combined with high torque output ensures fast, efficient material removal and a smooth finish every time.
• Three-Bearing Precision Structure: Features a robust three-bearing design with a thick hardened cylinder and alloy rotor for precise, low-vibration operation and long-lasting durability.
• Comfortable Non-Slip Grip: The ergonomic non-slip handle allows for confident, comfortable single-hand operation even during extended use. The standard 1/4-inch air intake with included hose ensures flexible connection to your compressor.
• Compact & Portable: Lightweight design makes it easy to maneuver in tight spaces, and it comes in a sturdy plastic carrying case for safe storage and transport.

Specifications

• Model: KP-6110
• Collet Sizes: 2.38mm (approx. 0.09 in) & 3mm (approx. 0.12 in)
• No-Load Speed: 70,000 RPM
• Operating Pressure: 0.4–0.6 MPa
• Air Intake: 1/4 inch
• Power Source: Pneumatic (air compressor required — not included)
• Country of Origin: Made in China

What's in the Box

• 1× Mini Die Grinder
• 1× Inlet Connector
• 1× Replaceable Chuck
• 2× Wrenches
• 1× Carrying Case
• 2× Grinding Heads
• 1× Accessory
• 1× Air Hose

How to Use

Simply connect the grinder to your pneumatic air compressor using the included 1/4-inch hose and inlet connector. Select the appropriate collet size, attach your desired grinding or polishing bit, set your desired speed, and you're ready to work.

Complete Your Workshop

Looking for more precision craft and workshop tools? Check out our Leather Hole Punch Tool | DIY Stitching Punch 4/5/6mm and our U & V Leather Groover Skiving Tool Kit – 4-Piece Stainless Set to round out your toolkit.

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: Does the mini pneumatic die grinder require an air compressor?

A: Yes, this is a pneumatic (air-powered) die grinder. It requires an external air compressor with a standard 1/4-inch fitting operating at 0.4–0.6 MPa. The air compressor is not included but the hose and inlet connector are provided in the kit.

Q: What collet sizes does this pneumatic pencil grinder come with?

A: The kit includes two collets — a 2.38mm and a 3mm collet — allowing you to use a wide variety of grinding bits, burrs, and rotary accessories for metalworking, woodworking, automotive finishing, and more.

Q: Is the mini die grinder suitable for detailed or precision work?

A: Absolutely. The pencil-style design, compact form factor, and three-bearing low-vibration structure make this grinder ideal for detailed engraving, deburring, and precision polishing tasks where control and accuracy are essential.

Q: What tasks can this 70,000 RPM die grinder handle?

A: This versatile pneumatic grinder is well-suited for grinding, polishing, deburring, cutting, drilling, and engraving on materials such as metal, wood, automotive components, and molded parts.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.