Report of the QCD Tools Working Group
  We report on the activities of the ``QCD Tools for heavy flavors and new physics searches'' working group of the Run II Workshop on QCD and Weak Bosons. The contributions cover the topics of improved parton showering and comparisons of Monte Carlo programs and resummation calculations, recent developments in Pythia, the methodology of measuring backgrounds to new physics searches, variable flavor number schemes for heavy quark electro-production, the underlying event in hard scattering processes, and the Monte Carlo MCFM for NLO processes. 
R.K. Ellis (FNAL), R. Field (Florida), S. Mrenna (Davis), G. Snow   (Nebraska) (Conveners), C. Balazs (Hawaii), E. Boos (Mos...