(FERS010-07) Knives for portable machine Mafell. Length Width Thickness Code 77 26 3.0 HSS FERS1515 77 26 3.0 HM FERS1539 82 18 3.0 HSS FERS1516 260 18.8 4.0 HSS FERS1517 280 18 3.0 HSS FERS1121 280 18 3.0 HM FERS1542