Abstract: The drywall sanding apparatus provides a tool assembly for finishing drywall preparation for paint or wallpaper. The apparatus comprises an attachment device for attachment of an abrasive sponge and at least one fastening member for holding the abrasive sponge to the attachment device. The fastening member includes an insertion portion for penetrating into an abrasive sponge to hold the attachment device adjacent the sponge during operation of the sanding device.

Abstract: The drywall sanding apparatus provides a tool assembly for finishing drywall preparation for paint or wallpaper. The apparatus comprises an attachment device for attachment of an abrasive sponge and at least one fastening member for holding the abrasive sponge to the attachment device. The fastening member includes an insertion portion for penetrating into an abrasive sponge to hold the attachment device adjacent the sponge during operation of the sanding device.

Abstract: A travelling pipe cut-off is described having a pair of knife-edged rollers mounted on a carriage that also supports a cut-off torch. At least one roller is engaged with the smooth surface of the pipe at all times during cut-off, each such roller advancing the carriage while the pipe is being advanced. The two rollers are spaced apart such that, as the bulge of a pipe seam approaches one of the rollers, that roller is moved out of engagement with the pipe, but the other roller remains in engagement. The carriage and cut-off mechanism is, therefore, advanced only by that roller which is engaged with a smooth surface of the pipe.