Stupid BRS hole saw

I cut 4 holes in 6mm and 1 in 4mm, now I only need 2 more holes in a 5.5g 2mm tank and it QUITS halfway through hole # 1.
Now I gotta spend $15 on gas and another $11 @ Princess Auto ....
for 2 lousy holes. After this I'm done cuttin'
Stupid BRS hole saw
