Abstract: A scraper apparatus, having a principal elongated housing; a handle member attached to a first end of the housing; a blade extending from the second end of the housing; a rod within the housing upon which the blade is mounted; a pneumatic power source for powering reciprocating movement of the rod means to impart reciprocating movement of the scraping blade; and a spring interconnecting the power source and the reciprocating rod to provide the reciprocating motion of the rod when power is applied thereto. The apparatus further comprises a support member along the length of the housing to magnetically secure the housing to a surface so that the weight of the apparatus is supported by the support member.