NIUNIU Complete size pin vice drill kit can meet your different needs. HIGH QUALITY: This adjustable pin vise has 3 jaw hardened steel keyless chucks to grip the small drill bits tightly. After many uses the drill bit does not skid and not falling off. And can adjust twist drills with a diameter of 0.2 - 3.4mm. COMPATIBLE AND USEFUL: The hand drill pin vise can hold small drills; deburrers; wires; reamers is useful for electronic assembling; tool making; model making. WIDE APPLICATION: The small hand drill can be applied to the wood; jewelry; PVC;walnut; amber; beeswax; olive nut; acrylic and plastic etc. NOTE: The adjustable pin vise is a manual tool not a power tool; Twist drill bits set can't fit to hard things like steel; iron; stone. Size: 48 Twist Bits 0.5/0.6/0.7/0.8/0.9/1.0mm (3 for each size); 1.1/1.2/1.3/1.4/1.5/1.6/1.7/1.8/1.9/2.0mm (for each size 2); 2.1/2.2/2.3/2.4/2.5/2.6/2.7/2.8/2.9/3.0mm (1 for each size). Quantity: 49pcs Colour: Black