Features: Made of premium quality material and easy to hold. High precision, can clip 0.02-0.24 inch (0.6-6 mm) drill bits. Drill Bit Diameter 1.5/2.0/3.0/4.0/5.0mm The hollow handle itself acts as a storage box. For drilling wood, walnuts, amber, olive nuts, plastic, etc. Specifications: ABS carbon steel clamp range: 0.02 - 0.2 inches (0.6 - 6 mm), Drill Bit: 0.08 inches (1.5 mm), 0.1 inches (3.0 mm), 0.1 inches (4.0 mm), 0.2 inches (175 mm), 6.9 inches (150 mm), 5.3 mm). .0mm 1 *Chuck Key