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Rotary Tool Dremel 7122
The Dremel 7122 rotary tool bits are designed for fine detail work such as cutting, engraving, carving, touch-up and finishing on a variety of hard materials. Each pack contains two diamond-coated bits with a 3.2 mm shank and a length of 46 mm, suitable for use with Dremel rotary tools that accept 3.2 mm accessories. The bits operate at the rotary tool's speed up to 25,000 RPM for precise, controlled material removal on small or intricate projects.
Diamond-particle coating provides durable cutting edges and consistent performance on hard materials. The 3.2 mm shank size and 46 mm length offer compatibility with standard Dremel collets and allow access to tight areas. Supplied as a two-piece pack for replacement or multi-step work, and suitable for high-speed operation up to 25,000 RPM for fine, controlled results.
Fit a Dremel 7122 bit into a compatible 3.2 mm collet or chuck, ensuring it is securely tightened before operation. Select an appropriate speed (up to 25,000 RPM) based on material hardness—use lower speeds for delicate work and higher speeds for efficient material removal. Apply light, steady pressure and keep the tool moving to avoid overheating or uneven wear; allow the diamond coating to do the cutting rather than forcing the bit.
Wear appropriate eye and respiratory protection when working with dust or fragments. For best results on brittle materials (glass, ceramic, stone), start with lower speed and increase gradually. Replace bits when cutting performance decreases to maintain precision and avoid surface damage.
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