Pferd Diamond Needle File Set, 5-Piece, Grit Size D 126, 5-1/2 inch, in Durable Plastic Box, 04025 – For Universal Use in Tool Making: Hand Files: Amazon.com: Tools & Home Improvement
PFERD 44063 POLISTAR-Tube Arbor for 5 mm Bore, 1/4" Shank Diameter x 1" Shank Length, 0-3/8" Clamping Width: Amazon.com: Industrial & Scientific
Amazon.com : PFERD CHAIN SHARP CS-X chain saw sharpener | file dia. 5/32 inch | 17300 – suitable for chain pitch 3/8" Low Profile, 2 in 1 chainsaw sharpening and depth gauge