Product overview Set contains four types of hand drill and two interchangeable drill collets. Designed for luthiers, string instrument technicians, guitar players, and general DIY workers who need precise, onehanded drilling for small tasks. Key benefits Precise, stable clamping reduces wobble and drill slip, improving hole accuracy. Two included collets let you match the chuck to the drill bit size for secure holding. Compact and lightweight design makes onehand operation comfortable and controlled. Unscrewable drill tail provides easy access to the internal collet for fast collet changes. Suitable for fine work where concentricity and repeatable alignment matter. How it solves common problems Prevents drill bit slipping and misalignment by using the correct collet and a concentricity clamp. Reduces the need for a second hand or extra fixtures, enabling singleoperator tasks. Small, multifunctional tools fit into tight spaces where larger drills cannot reach. Key features Kit content: four hand drill types plus two drill collets. Interchangeable collet system: remove the tail to access the internal collet and install the correct size for your drill bit. Precision clamp with concentricity for tight, reliable closure. Lightweight, compact form factor for comfortable handheld use. Compatibility and usage notes Use the collet that matches the diameter of the drill bit. Incorrect collet selection can prevent the bit from seating properly or cause slipping. Intended for small diameter drilling tasks common in instrument making, , and light household DIY. Works with manual drill bits that fit the provided collet sizes. Typical applications Luthier work: drilling tuner peg holes, positioning bridge pinholes, and small repairs on acoustic and electric instruments. Guitar maintenance: installing or adjusting hardware, reaming small holes, and precise pilot drilling for screws. Household and workshop tasks: small cabinetry adjustments, model making, and light woodworking where precision is required. Practical tips Verify collet fit before starting to avoid damaging the bit or workpiece. Tighten the clamp fully to ensure concentricity and prevent wobble. Use steady, controlled pressure when drilling thin or delicate materials. This compact hand drill kit provides controlled, accurate drilling for instrument makers and precision DIY work. Follow collet selection guidance to ensure safe and reliable operation.