castguy2003
I tried slow and moderatley fast rpm's this would include 900 rpm. I dont know the grade of aluminum cause I baught it from HomeDepot. I used a centering bit to locate the center and then whent to 5/16" drill. My main concern was how the bit imediatly wondered of center as soon as it touched the aluminum and was wondering if I was using the wrong type of bit or quality was an issue. Are these the correct style of bits and will the quality do for now as I'm just starting out with this as a hobbie?
Thanks fot the help,
James |