Universal Wrench With Impact Driver (Uwwid)

Abstract

The Universal Wrench with Impact Driver (UWWID) was developed to address limitations in conventional adjustable wrenches, including slippage, excessive human effort, and lack of maintainability. This study presents the ergonomic design and validation of a multi-surface gripping wrench integrated with a manual impact transfer mechanism. The design process incorporated advanced CAD modeling, DF2 tool steel selection, and iterative prototyping. Comparative torque and usability tests demonstrated a gripping efficiency increase of 42% over standard adjustable wrenches, and a 65% reduction in manual effort due to the impact driver. Experimental analysis confirmed average torque resistance of 57 Nm before slip, and significant time savings during bolt removal. The UWWID thus presents a viable tool for maintenance-intensive environments requiring strength, adaptability, and user-centered design.