Proposed is an excavating apparatus including a lower arm having a width that is gradually increased from one end to the other end, and a fixing hole formed in the outer peripheral surface at the other end, a rotational arm stand which is located on the other end of the lower arm, is formed in a disc shape, and is rotatably fixed to the lower arm, an upper arm which is fixed to the rotational arm stand, and has a guide hole in the outer peripheral surface thereof, a center joint which is surrounded by the lower arm, the rotational arm stand, and the upper arm, and is exposed to outside via the fixing hole of the lower arm and the guide hole of the upper arm, and a slip ring which is inserted into or separated from the center joint via the guide hole of the upper arm.

A yoke of a dipper handle comprises a collar and a crowd pin aperture extending along a crowd pin aperture axis. First and second arms of the yoke include dipper pin lug apertures aligned along a dipper pin aperture axis parallel to the crowd pin aperture axis. The first and second arms of the yoke further include first and second pitch brace lug apertures aligned along a pitch brace aperture axis parallel to the crowd pin aperture axis. A first virtual reference line extends between the crowd pin aperture axis and the dipper pin aperture axis, while a second virtual reference line extends between the crowd pin aperture axis and the pitch brace aperture axis. An included angle between the first virtual reference line and the second virtual reference line is between approximately 25 to approximately 51 degrees.