ÜLKA Diamond Ball Nail Drill Bit 4 mm (Red, Soft Grit) B040-F

The ÜLKA professional ball-shaped diamond nail drill bit with a 4.0 mm diameter and a red indicator band is a premium tool designed for delicate hardware (E-file) and combined manicure and pedicure procedures. Featuring a soft grit and a perfectly balanced spherical head, this bit provides exceptionally gentle, non-traumatic processing of sensitive areas, guaranteeing absolute safety for the client and pristine results for the technician.

Primary Uses and Application:

• Delicate lifting, trimming, and removal of thin, dry, or adherent cuticles.

• Final smoothing, refining, and polishing of lateral nail folds.

• Safe removal of pterygium and processing of sinuses without the risk of over-filing the nail plate.

• Working on highly sensitive, thin skin, as well as children's hands (pediatric manicure).

• Shaving down minor skin flaking and hangnails around the nail frame.

Technical Specifications:

Proper Maintenance, Cleaning, and Sterilization:

To preserve the performance of the fine diamond coating and prolong the lifespan of the tool, adhere to a strict three-step decontamination protocol:

1. Disinfection:

   Immediately after use, submerge the drill bit into a professional disinfectant solution. Use only top-tier concentrates with corrosion inhibitors specifically engineered for delicate metal rotary tools.

2. Ultrasonic Cleaning:

   To fully eliminate microscopic organic debris from the fine grit, use the ÜLKA Pulse ultrasonic cleaner. It effectively flushes out hard-to-reach zones. Afterward, ensure the bits are entirely dry. To accelerate drying, use the 80°C drying cycle for 30 minutes in the Jupiter 10V dry heat sterilizer.

3. Thermal Sterilization:

   Place completely dry bits into self-sealing sterilization pouches (kraft bags) and sterilize them inside the professional ÜLKA Mercury 2V or Jupiter 10V dry heat sterilizers at a temperature of 160–180°C.

Important Guidelines:

• Store nail drill bits exclusively in dry bur stands or holders that shield them from ambient moisture, dust, and accidental contamination.

• Do not drop or bump the drill bits against hard surfaces. Any impact can warp the shank, resulting in rotational runout (wobbling) that will damage the micromotor handpiece bearings.