Aluminum can be a tricky to weld, but Hobart’s DP 3545-20 spool gun allows the proper welding of aluminum from 18-gauge to 1⁄2-inch.

The POWER MIG 211i welder is a rugged 200-amp machine for MIG, flux-cored, and spool gun welding. This product is designed for the small shop, the farm, maintenance, repair work and more.

That lets us use the “big MIG” for most of our welding, and the spool gun for long distance welding. One concern with using a spool gun to weld on big equipment is that the welder’s ground ...