A modified reciprocating saw blade for use in association with a saw blade holder, shingles and nails, the apparatus comprises a blade member being formed in an elongated planar configuration with an inboard end, an outboard end and a central section, the inboard end being formed as a universal blade...http://www.google.com.au/patents/US5855158?utm_source=gb-gplus-sharePatent US5855158 - Modified roofing, shingle, and siding removal saw blade
