Hecht 004048 Chain sharpening set 4mm / 4.8mm / 5.5mm

The HECHT 004048 chain sharpening set is the practical helper for sharpening chainsaw chains. The set includes a flat file and a round file with diameters of 4 mm, 4.8 mm, and 5.5 mm. It also contains a file holder handle, an angle guide, and a depth limiter. The set comes in a high-quality case.

Relation of chain pitch to file diameter:

• Chain pitch (inches) - Suitable file diameters
• 0.404" - 5.5 mm and 4.8 mm
• 3/8" - 5.2 (5.5) mm and 4.8 mm
• 0.325" - 4.8 mm and 4.5 mm
• 3/8" Low profile - 4.5 mm and 4 mm
• 1/4" - 4.0 mm and 3.5 (3.2) mm

General sharpening tips: The round file used should extend one-fifth to one-tenth of its diameter over the tooth top. This ensures appropriate stability of the cutting edge and thus prolongs its lifespan. The tooth height varies with different chain pitches, so different files are required depending on the pitch.