• Machined Steel
• Fits Older FEIN® Knife Models FSN400 and ASTLXE638
• Use With FKSW and CRL6365 or FK0EW Spanner Wrenches

The CRL FEIN® Spanner Bolt will fit older FEIN® Cut-Out Knife Models FSN400 and ASTLXE638. Order a replacement to have on hand in case a replacement is needed. This nut requires the Spanner Wrench FK0EW to tighten or loosen.

Product Warning:

NOTE: This is the old style nut that uses the spanner wrench, CAT. NO. FK0EW, for older FEIN® models FSN400 and ASTLXE638, which are imprinted on the tool. Newer models of the FEIN® Knives, FSC1.6 and FSC2.0, use the nut assembly CAT. NO. 6011039.