Check the listing for details. USA PANA DLC Black Cone Shape Carbide Bit 3/32" Shank Size- Extra Coarse. Color: Black, Condition: New. Listed at 8.59 USD. Professional DLC Black Cone Shape Carbide Bit 3/32" Shank sizeGrit: Extra CoarseColor: DLC BlackLength: 1.5 InchesHead Dimensions: 0.26 Inches x 0.5 Inches High Quality and Long-Lasting Black Carbide Metal - Stronger and faster Finger Nail Preparation for Cuticle Area and Sidewalls, Under-nail Cleaning. Toenail preparation, cleaning and surface work.Fits most nail drill machines that use 3/32" bits, durable for long time use.They could be used for polishing nail surface or even getting into tight areas such as sidewalls and cuticles part.The drill bit brush bit helps clean and shine nail surface and drill bits.Easy to Clean: The nail drill bits are corrosion resistant, as well as no clogging for nails. Nail Brush Bit can easily clean the dust on the bits or nails, protect the bits after each use, keep you and your nails healthy.