Features: This product is designed to store dental drill bits. The smaller holes are intended for FG high-speed burs, and the larger holes are for RA low-speed burs. Includes 168 holes for storing multiple drill bits. Equipped with a transparent cover for safe and convenient use. Helps organize dental drill bits and saves space. Features a combination of small and large holes to accommodate various bit sizes. Constructed with a firm and flat ABS base to prevent slipping. Specification: Type: Dental Tool Material: ABS Color: Beige Holes: 168 Holes Hole Size (24 Holes): Approx. 1.6mm / 0.06in (DIA) Hole Size (144 Holes): Approx. 2.35mm / 0.09in (DIA) Item Size: Approx. 15 * 10 * 5.0cm / 5.9 * 4.0 * 2.0in (L * W * H) Package list: 1 x Dental Drill Bit Holder