Premium copper construction: made from flat copper material for enhanced durability and long service life. The solid metal body resists deformation under repeated use and provides consistent performance project after project. Adjustable chuck, precise fit: the chuck accepts and securely grips drill bits from 0.5 mm to 2.0 mm, covering a wide range of small-diameter bits used in fine work. Precise clamping reduces bit wobble and improves drilling accuracy. Portable and compact: small, lightweight design for easy transport and storage in toolbags or small workboxes. Ideal when space is limited or when you need a reliable handheld accessory on the go. Simple manual operation: easy manual turning for effortless operation across multiple projects. No power required, giving you full control for delicate or detailed tasks. Why you need it Solves the common problem of unreliable small chucks that slip or wear quickly. The copper construction and adjustable range provide stable, repeatable clamping for fine drill bits. Makes precision drilling faster and less frustrating, especially on delicate materials where control and minimal vibration matter. Fits into workflows that require portability and tool durability without adding bulk. Key attributes at a glance Material: flat copper Chuck capacity: 0.5 mm to 2.0 mm bits Size: compact, lightweight for easy carrying and storage Operation: manual turning for controlled, power-free use Practical applications Electronics and circuit boards: drill small vias or component holes with steady, low-vibration control. Jewelry, watch, and model making: precise drilling for settings, pins, and miniature parts where accuracy is critical. Crafts and hobby projects: use on plastics, thin wood, or other materials for fine detailing when a handheld, compact solution is needed. What makes it stand out Combines durable metal construction with a fine, adjustable chuck range for reliable performance on small-diameter bits. Designed for users who need a compact, dependable tool that provides control and consistency without relying on power tools.