Machinists´ Files Engineer´s file Design:- with forged tang; flawless steel microstructure for uniform hardness- evenly executed cut, exact shapeDINForm7261A Use: Quality file for the highest demands, with long service life and high stock removal rate 400100 hand, cut 1 (coarse) 400200 hand, cut 2 (medium) 400300 hand, cut 3 (fine) Cut 1 (coarse) Cut 2 (medium) Cut 3 (fine)roughing,universal roughuingfinishing, Cutting lengthmm 400100 400200 400300 Cross-sectionmm coerse machining and finishing fine machining 100    12 × 2.5 150    16 × 4.0 200    20 × 5.0 250    25 × 6.0 300    30 × 6.5 parallel ending 350   — 35 × 7.5 401100 square, cut 1 (coarse) DIN Form 401200 square, cut 2 (medium) 7261 D 401300 square, cut 3 (fine) Cutting lengthmm 401100 401200 401300 Cross-sectionmm 100     4.0 150     6.0 200     8.0 pointed ending 250    10.0 300   — 12.0 402100 three-square, cut 1 (coarse) DIN Form 402200 three-square, cut 2 (medium) 7261 C 402300 three-square, cut 3 (fine)Cutting lengthmm402100402200402300Cross-sectionmm 40 100    8.0 150    11.0 200    15.0 250    17.5 pointed ending 300   — 20.0 403100 half round, cut 1 (coarse) DIN Form 403200 half round, cut 2 (medium) 7261 E 403300 half round, cut 3 (fine) Cutting lengthmm 403100 403200 403300 Cross-sectionmm 150    16 ×   4.5 200    20 ×   6.0 250    25 ×   7.0 300    30 ×   8.5 parallel ending 350  — — 35 × 10.0 404100 round, cut 1 (coarse) DIN Form 404200 round, cut 2 (medium) 7261 F 404300 round, cut 3 (fine) Cutting lengthmm 404100 404200 404300 Cross-sectionmm 100    4.0 150    6.0 200    7.5 pointed ending 250    9.5 300    12.0 www.precitool.de 40/797