Output shaft and concentrically mounted attachments therefor

摘要

An output shaft and attachment combination and a power tool incorporating the combination are disclosed. The output shaft has a first diameter portion, a second diameter portion, and a drive portion located between the first and second diameter portions. The attachment has a first cylindrical bore, a second cylindrical bore, and a driven bore located between the first and second cylindrical bores. The first cylindrical bore and the second cylindrical bore have inner diameters sized to receive outer diameters of the first diameter portion and the second diameter portion, respectively. The driven portion is configured to engage the drive portion.