01590 Style: Len.:6", Dia.:1/8" (part# 01590) This item features: -Tighten tension on chain to firmly support cutters when filing. -File from inside to outside of cutter. -Place file against bevelled cutting surface of teeth 20 to 45 with saw. -Cut Type: Smooth Cut. -Tooth Pattern: Curved - Spiral Cut. -Style: American Pattern. -Applicable Materials: Carbon Steel. -Quantity: 6 per box. -Price is for 1 Each.