The AMAOE Abrasive E40 Drill Pen Tip is a high-precision grinding accessory designed for micro drill pens. This 2-piece set features a compact elliptical/oval profile, making it ideal for grinding concave surfaces, smoothing rounded edges, and preparing recessed areas on PCBs, metal casings, and plastic components.

Key Features

• Elliptical Profile (E40): The rounded oval shape with a smaller head size is optimized for working in tight curved recesses and creating smooth fillets in confined spaces.
• Standard 3mm Shank: Designed to fit universal micro drill pens, hanging rotary tools, and electric engravers with standard 3mm collets.
• High-Hardness Abrasive: Constructed from durable industrial-grade abrasive to ensure efficient material removal and long service life.