Feature:

12V Lithium Battery  Chainsaw Sharpener Kit Handheld Chainsaw Sharpening Kit can fit for most chainsaw blades.Easily maintain your oil chains, gas chains.

Fine workmanship and good performance.Easy to use ,Durable in use.

Specifications:

Product name: 12V Lithium Battery Grinding Chain Machine

Size:27.3x5cm

Chuck size: 3mm

Lithium battery capacity: 2000 mAh

Charging time:4-5 hours

Working time:40-60 min

Power: 55W

Rotating speed: 20000 rpm/min

Net Weight:0.5kg

Speed regulation function: no

Packing list:

1 set of Lithium Battery Grinding Chain Machine

Note:
1.Included within the pack are three sizes of grinding stones 4mm (5/32'), 4.8mm (3/16'), 5.5mm (7/32'), it Suitable for chainsaws over 12 inches; other specifications of Grinding heads are not included and need to be separate purchased.

The reference of select grinding head model is as follows:
Electric chain saw 4-8 inch with 2.5mm
10 inch Angle grinder and electric chain saw suitable for 3.0mm 
4.0mm for 12 inch chainsaw and 12 inch / 14 inch / 16 inch
325 chain 18 inch / 20 inch suitable for 4.8mm
Large 3/8 and 404 chains are suitable for 5.5mm