1. The diameter can be adjusted in 8 steps, and the engraving diameter can be as small as 4mm. 2. Concentric design, adjustment-free timing belt. 3. All metal structure, safe and stable. 4. Closed design, the motor is not exposed, safer. 5. Roller protruding design, no obstruction, unlimited length of engraved objects. 6. One-piece rubber roller, hardness up to 70A, stronger friction, more stable engraving process. 7. Engraving: longer cylinders, small diameter cylinders, over-length plate engraving, over-length plate cutting. 8. The linear speed is applicable to 95% of the engraving machines on the market, including ATOMSTACK, NEJE, Ortur, Twotrees, etc. 9. No installation, no adjustment, ready to use after unpacking. 10. Applicable models: frame engraving machine, portable engraving machine.
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