Are they worthy competitors of the Chicago Electric tools at Harbor Freight? Last week on black friday I bought a 120V/2A vari-speed, oscillating multi-tool kit at HF for only $25. Today at WM I saw a very similar tool, for $19 (did not include any accessories). The Chicago Electric tool comes with a 90 day warranty, and the HyperTough tool comes with a 2 year warranty. The cashier at HF did offer me a 2 year extended warranty for an extra $20. No thanks!