This document discusses an experiment conducted to investigate the effects of electrical discharge machining (EDM) process parameters on material removal rate (MRR), tool wear rate (TWR), surface roughness, and angle of deviation when machining titanium grade 5 alloy with a brass electrode. The experiment used a Taguchi L27 orthogonal array to test three levels each of pulse current, pulse on time, pulse off time, and tool geometry (square, circular, triangular). Analysis of variance and analysis of means techniques were used to evaluate the model and rank the influence of factors. The results showed that pulse on time had the greatest influence on MRR, followed by tool cross-sectional area, pulse current, and pulse off time.