1.6-in-1 Screwdriver-Wrench Tool — compact, portable multi-tool for clamp locks and small fasteners Key benefits Solves the need for a single, pocket-sized tool that fits multiple clamp-lock fasteners and common small metric sizes. Carbon steel construction provides high hardness and long service life, reducing wear and preserving a precise fit. Slim and lightweight design (approx. 10.2 x 2.1 x 0.2 cm) makes it easy to carry in a pocket, tool bag, or on a key ring for on-the-spot adjustments. What it does Functions as a combined screwdriver and wrench in one compact profile. Designed specifically for clamp locks and compatible with fastener sizes 5.0 mm, 5.5 mm, 7.0 mm, and 8.0 mm. Simple shape and accurate edges give reliable torque for tightening or loosening small clamps and bolts without rounding heads. Specifications Type: 1.6-in-1 screwdriver-wrench tool Material: Carbon steel (high hardness) Dimensions: approx. 10.2 x 2.1 x 0.2 cm Compatible sizes: 5.0, 5.5, 7.0, 8.0 mm Primary use: clamp locks and small metric fasteners Practical use scenarios On-the-go bike adjustments: tighten seat clamps or accessory mounts that use the listed metric sizes. Photography and video rigs: make quick clamp-lock and accessory adjustments on tripods, arms, or mounts in the field. Home DIY and small repairs: assemble furniture, tighten clamps on small fixtures, or service appliances where 5.0–8.0 mm fasteners are used. Tips for best results Use the size that matches the fastener to avoid slippage and head damage. Keep the tool dry and store it with other hand tools to preserve the carbon steel finish and performance. A compact, durable solution for anyone who needs a reliable, portable tool for clamp locks and small metric fasteners.