Hand tool handle design based on hand measurements

Abstract

This study provides a tool handle design guideline based on measurements of hand gripping diameter. Anthropometric measurements on hands of 60 participants were collected with a caliper. The results in the current study concluded the guidelines for handle design, including: (1) a definition of handle design was depended on the users' hand length and hand breadth, (2) different gender would affect the size of tool handle, (3) the handle length at least should be 100mm, (4) the cross-section handle of elliptical shape was better for gripping, and (5) the best ratio of handle cross-section with width and length should be 1:1.25. These findings can serve as references for tool handle design, and improve comfort for users.