| 摘要 |
PURPOSE: A driver tool is provided to prevent lost and minimize the volume by being embedded with cross and slot type cores. CONSTITUTION: A driver tool(50) comprises a housing(52) and a holder(60). The housing has a slot type first core(62) on the tip and an inner hollow. The holder is installed to reciprocate in the hollow of the housing and has a cross type second core(64). The second core is coupled perpendicular to the first core by passing through the housing. |
