STIHL FG 4 Roller Filing Tool for 3/8" P Mini, 4.0 mm

Your chain is starting to pull and cut unevenly? The STIHL FG 4 Roller Filing Tool helps you restore a sharp, consistent cutting edge with minimal effort. Its roller-guided design keeps the file steady, so you get smooth, precise results without pushing hard.

Built for regular chain care, it’s ideal if you want workshop-quality sharpening on site. An integrated depth gauge plate lets you quickly set the rakers after sharpening, keeping cutting performance balanced and safe.

Where this tool shines

• Weekly touch-ups to keep a 3/8" P Mini chain cutting fast
• On-site maintenance when you can’t reach a bench grinder
• Consistent angles if hand-filing usually wavers
• Quick depth gauge checks after sharpening

Why users like it

• Accurate guidance: Roller support stabilises your file
• Balanced cutting: Built-in plate sets the depth gauges
• Light and compact: Easy to carry in your kit
• Low effort: Smooth filing without heavy pressure

In the hand

The FG 4 feels straightforward: place it, guide the file, and let the rollers do the work. Angles are easy to repeat, so both sides of the chain match. After sharpening, flip to the depth gauge plate to adjust rakers before your next cut.

Capacity and key details

• For 3/8" P Mini chain, Ø 4.0 mm
• Available diameters: 5.2 / 4.8 / 4.0 mm
• With built-in depth gauge plate
• Supplied without file

Advice from gardenmachineshop.com

Mark your first cutter with a pen before you start—this helps you keep track and finish each tooth evenly.

Returns: as a consumer you can withdraw from your purchase within 14 days of receiving it, without giving a reason – this also applies to parts we order in specially for you. See our Refund & return policy for how to return an item and who pays the return shipping.