Features:

• Hand held 12v mini chainsaw sharpener
• 12 volt, 24000 rpm motor
• Connects to any 12v battery
• Replaceable grinding stones: 4.0mm 5/32, 4.8mm 3/16 & 5.5mm 7/32
• For 3/8s low profile, 1/4 .325mm & 3/8 pitch chains