It’s nice to have battery power so I can take the tool out in the field if I need to sharpen a tool on the work site e.g. When placing the tool in the case keep in mind it only fits in one way. This tool comes in a well-designed carrying case as it is relatively small and components don’t move around. I am not a fan of the Quick Change collet, and I use the supplied conventional collet nut that tightens / loosens with a wrench. The 12V unit has a 3 year warranty, the USB Lithium 2 years. The USB Lithium has the convenience of a removable battery, while the 12V battery is not removable. Both come with a small assortment of bits, and the 12V unit includes a few cut-off disks.īattery life in both tools is quite good. The 12V unit comes in a nice case along with 3 accessories. If you need a more powerful unit, I recommend the 12V unit. If you don't need the heavier cut-off ability, I recommend the USB Lithium Unit.
You can engrave with the 12V unit but the maneuverability and comfortable size of the USB Lithium makes it the hands down winner in this area. It is ideal for intricate detail work, especially engraving. The chart omits that the USB Lithium can be used for metal cutting. Sales literature for the 12V unit shows a chart comparing Ryobi’s Rotary tools. The USB Lithium is more of a hobbyist / jewelry maker tool and not really suited for heavy duty metal / bolt cutting. It has the power to easily sharpen mower blades, heavy duty rust removal using wire brushes and cut bolts. The 12V unit is more of a heavy duty tool that a serious handyman would want. Each tool serves a slightly different customer niche. I have both the USB Lithium Rotary tool and the 12V Cordless Rotary Tool.
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