I wonder since I now have my power hacksaw as well adjusted as It will allow should I use coolant when cutting or not? I have a large can of water mixed oil coolant the milk of all coolants.ANYWAY i NEVER USE COOLANTS ON MY OTHER TOOLS ALWAYS CUTTING DRY, AND AM HAPPY so far THAT WAY.hOWEVER i FEEL WITH THE pOWERED HACKSAW MAYBE THIS WOULD BE MORE PRUDENT TO USE COOLANT AS THE BLADES WILL LAST LONGER(PERHAPS) what do you think.Alistair