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.

Advantages

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.

Suitable for

• Precision cutting and trimming
• Engraving and carving small details
• Touch-up and finishing surfaces
• Work on wood, ceramic, glass and jade
• Shaping or detailing semi-precious stones and hardened steel

Key specifications

• Brand: Dremel
• Model / MPN: 26157122JA (Rotary Tool Dremel 7122)
• Pack quantity: 2 pieces
• Shank diameter: 3.2 mm
• Length: 46 mm
• Coating: Diamond particles
• Recommended max speed: 25,000 RPM
• EAN: 8710364044856

How to use

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.

Recommendations

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.