A drill (1) for drilling railway sleepers comprises a support structure (2), a motor unit (3) supported by the support structure (2), a handle (4) connected to the support structure (2), at least one control member (5) arranged at the handle (4) for actuating the motor (3), a spindle (7) supported by the support structure (2) and operable by the motor (3), to rotate about a spindle axis (16), wherein a drilling tip (8) can be coupled to said spindle, a protective casing (11) connected to the support structure (2) and sliding in the direction of the spindle axis (16) between an axially protracted position, in which it envelops the tip (8) and an axially retracted position, in which the tip (8) protrudes from the protective casing (11), wherein the handle (4) comprises two gripping portions (36, 37), for the user's two hands, situated on two diametrically opposite sides of the drill (1) with respect to the spindle axis (16), and the motor unit (3) comprises an electric motor which can be powered by means of a rechargeable and replaceable battery (6).

A railroad tie maintenance vehicle is configured to seal spike holes in a railroad tie formed by the removal of railroad spikes. The vehicle includes a chassis with an integrated operator work station. The vehicle may move along railroad tracks with a plurality of wheels that support the chassis and that are configured to engage at least one railroad track. A motive power source, supported on the chassis, may be controlled by an operator within the operator work station to propel the vehicle along the railroad tracks. At least one storage vessel on the chassis contains a chemical solution used to fill the spike holes. At least two injection devices on the chassis are remotely controlled by the single operator, possibly by the operation of a single controller such as a joystick, to move into alignment with respective spike holes and to fill the spike holes with the chemical solution.

A railroad tie maintenance vehicle is configured to seal spike holes in a railroad tie formed by the removal of railroad spikes. The vehicle includes a chassis with an integrated operator work station. The vehicle may move along railroad tracks with a plurality of wheels that support the chassis and that are configured to engage at least one railroad track. A motive power source, supported on the chassis, may be controlled by an operator within the operator work station to propel the vehicle along the railroad tracks. At least one storage vessel on the chassis contains a chemical solution used to fill the spike holes. At least two injection devices on the chassis are remotely controlled by the single operator, possibly by the operation of a single controller such as a joystick, to move into alignment with respective spike holes and to fill the spike holes with the chemical solution.