3-phase angle grinder bandsaw blacksmith blacksmithing blanks build car circular saw guide clamp cnc deburring diy drill drill press engine making fixes forging free plans hammer handmade hex homemade how to make jig joke kluge knife know more knurled laser lathe machining metal metal bender metalworking micro mill milling mini lathe miter saw nuts oil resistant jointing phase converter plastic pliers plywoodworking repurpose restoration ros rotary phase converter router router table safety sensitive drill press storage table saw thin pieces thread dial indicator thumb tool tools trick trike vise washing machine motor welding welding fume extraction woodworking workshop