Complete 5-Piece Size Set: Includes 5 micro precision screwdrivers in sizes 0.8/1.0/1.2/1.4/1.6mm, this essential watchmakers screwdriver set covers all daily precision repair needs for small parts Ergonomic & Non-Slip Design: Knurled/grid-patterned handles of each watch screwdriver prevent slipping; groove design on tips secures screws for easy assembly/disassembly, reducing hand fatigue Durable Carbon Steel Material: Crafted from high-quality carbon steel, the precision screwdriver set is rugged, wear-resistant, corrosion-proof and durable for long-term use, with sturdy tips that won’t easily break Versatile Precision Applications: Ideal for watch repair, battery replacement, bracelet screw removal, eyewear/jewelry maintenance (including screwdriver for glasses tightening), and small electronics Color-Coded Identification: As a practical watch repair kit accessory, each screwdriver features a unique color-coded handle corresponding to its size, enabling quick and easy selection during intricate repairs, Weight: 0.1322773572 Pounds, Manufacturer: ZHUOmengyun