- Precise hole enlargement for guitars: the tapered reamer with solid texture and a sharp round tip delivers clean, accurate holes with minimal drift. - Portable mini design and ergonomic grip: compact size fits in a tool kit or instrument case; ergonomic handle provides comfortable, less-fatiguing operation. - Durable metal construction: sturdy, wear-resistant material built for repeated use in workshop or on stage. - Broad compatibility for common hardware: ideal for enlarging or smoothing holes for strap buttons, ferrules, jack plates, pickups, and related hardware. - Easy, controlled operation: gradual taper guides hole expansion; apply steady pressure and rotate for a uniform finish. - Practical use scenarios: stage repairs to adjust a loose strap button hole; DIY projects to fit new pickups or jack plates; luthier work to enlarge or smooth control cavities or hardware holes.