<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 5.50.4611.1300" name=GENERATOR></HEAD> <BODY> <DIV><SPAN class=770582901-21112002><FONT color=#0000ff size=2>I use a 1/2 horse power drill too but it's not variable. The important thing is that you don't get a variable speed one that exceeds 850 RPM. I tried other drills, but the faster RPM wasn't too good especially when I was just restinging without replacing the bock.</FONT></SPAN></DIV> <DIV><SPAN class=770582901-21112002><FONT color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=770582901-21112002><FONT color=#0000ff size=2>Marcel Carey, RPT</FONT></SPAN></DIV> <DIV><SPAN class=770582901-21112002><FONT color=#0000ff size=2>Sherbrooke,  QC</FONT></SPAN></DIV> <BLOCKQUOTE> </BLOCKQUOTE></BODY></HTML>