Impact tool anvil with improved detent pin

An impact tool comprising:

• a housing;
• an anvil extending from the housing;
• a tool element removably coupled to the anvil;
• a drive assembly configured to impart rotational impacts to the anvil;
• a detent system supported by the anvil, the detent system including:
• a detent pin defining a longitudinal center axis and having a notch, and
• a retaining pin received within the notch,
• wherein the detent pin is movable along the longitudinal center axis relative to the anvil between an extended position and a retracted position,
• wherein the detent pin is configured to engage the tool element to retain the tool element on the anvil when the detent pin is in the extended position,
• wherein the retaining pin is resiliently deformable to bias the detent pin toward the extended position,
• wherein the notch includes a first surface, a second surface extending along a first lateral edge of the first surface and therefrom at an oblique angle, and a third surface extending along a second lateral edge of the first surface and therefrom at an oblique angle opposite the second surface, an upper edge, and a lower edge, and
• wherein the first surface, the second surface, and the third surface extend parallel to the longitudinal center axis between the upper edge and the lower edge of the notch.

An anvil configured to receive impacts from a hammer of an impact tool, the anvil comprising:

• a plurality of anvil lugs configured to receive impacts from the hammer;
• a driving end portion configured to receive a tool element thereon, the driving end portion including a bore;
• a detent pin received within the bore and defining a longitudinal center axis, the detent pin having a notch disposed on only one side of a longitudinal mid-plane containing the longitudinal center axis, wherein the notch has a beveled configuration, and
• a retaining pin received within the notch,
• wherein the detent pin is movable relative to the anvil between an extended position and a retracted position,
• wherein the detent pin is biased toward the extended position,
• wherein the retaining pin engages an end of the notch to limit movement of the detent pin to the extended position,
• wherein the notch includes a first surface, a second surface extending along a first lateral edge of the first surface and therefrom at an oblique angle, and a third surface extending along a second lateral edge of the first surface and therefrom at an oblique angle opposite the second surface,
• wherein the notch defines a first end and a second end, and
• wherein the first surface, the second surface, and the third surface extend longitudinally between the first end and the second end of the notch.