Abstract: The present invention relates to a device to assist in filling a hole in a sheet or plate of any material, with a filler compatible with the material, the device comprising a flexible plate adapted to be inserted through the hole in the sheet or plate; a detachable attachment member adapted to extend generally perpendicularly from a surface of the flexible plate and including a connection to locate at least one locking member thereto; the locking member being detachably attachable to the attachment member so as to apply a tensile load on the attachment member thereby causing the flexible plate to bear on and be held adjacent to the hole.