This lightweight Timber Tuff 9.6V handheld chain saw sharpener is small enough to go in the field with you to sharpen chains on the spot and keep safety and efficiency at their peak. This sharpener features 10 variable speeds and runs at 8,000–20,000 rpm. Includes two 9.6V Ni-Cd rechargeable batteries so you'll always have a spare ready to go. This sharpener comes with a 3-hr. AC battery charger and sharpening attachment with LED light for work in low-light conditions, plus 5/32, 3/16" and 7/32" grinding stones. Replacement stones (Item # 163141), sold separately in pkg. of 5. 0.75 lb.