ATA International Product Catalogue

307 SPADE DRILLS DESCRIPTION OF HOLDER MODELS ×D  mm + cutting depths ≈ 4×D  18-24 mm = 117.5 mm  25-35 mm = 136.5 mm  36-47 mm = 165.1 mm 309 ≈ 5×D  9.5-12.5 mm = 60.3 mm  13-17.5 mm = 63.5 mm  18-24 mm = 168.3 mm  25-35 mm = 187.3 mm  36-47 mm = 209.6 mm  48-65 mm = 231.8 mm 311/313 ≈ 8×D  9.5-12.5 mm = 111.1 mm  13-17.5 mm = 114.3 mm  18-24 mm = 269.9 mm  25-35 mm = 288.9 mm 315 ≈ 3×D  9.5 - 12.5 mm = 31.8 mm  13-17.5 mm = 34.9 mm  18-24 mm = 66.7 mm  25-35 mm = 85.7 mm  36-47 mm = 120.7 mm  48-65 mm = 130.2 mm 317/319 ≈ 8×D  36-47 mm = 349.3 mm  48-65 mm = 422.3 mm 321 ≈ 12×D  9.5-11 mm = 222.0 mm  11.5-12.5 mm = 222.3 mm  13-17.5 mm = 295.0 mm  18-24 mm = 457.0 mm  25-35 mm = 511.0 mm  36-47 mm = 558.8 mm  48-65 mm = 625 mm 323/325 ≈ 15×D  9.5-11 mm = 290.0 mm  11.5-12.5 mm = 290.5 mm  13-17.5 mm = 387.0 mm  18-24 mm = 569.0 mm  25-35 mm = 692.0 mm  36-47 mm = 787.4 mm  48-65 mm = 879.0 mm 327/329 ≈ 4×D  18-24 mm = 120.7 mm  25-35 mm = 136.5 mm  36-47 mm = 165.1 mm 331 ≈ 5×D  9.5-12.5 mm = 60.3 mm  13-17.5 mm = 63.5 mm  18-24 mm = 171.5 mm  25-35 mm = 187.3 mm  36-47 mm = 209.5 mm  48-65 mm = 231.8 mm 333/335 ≈ 8×D  9.5-12.5 mm = 111.1 mm  13-17.5 mm = 114.3 mm  18-24 mm = 273.1 mm  25-35 mm = 289.0 mm 337 ≈ 3×D  9.5-12.5 mm = 31.8 mm  13-17.5 mm = 35 mm  18-24 mm = 69.8 mm  25-35 mm = 85.7 mm  36-47 mm = 120.6 mm  48-65 mm = 130.1 mm  64-114 mm = 171.5 mm 339/341 ≈ 8×D  36-47 mm = 349.3 mm  48-65 mm = 422.3 mm  64-88 mm = 463.6 mm  90-114 mm = 555.6 mm 343/345 ≈ 12×D  36-47 mm = 558.8 mm  48-65 mm = 625.0 mm  64-88 mm = 660.0 mm  90-114 mm = 685.0 mm 347/349 ≈ 15×D  36-47 mm = 787.4 mm  48-65 mm = 879.0 mm  64-88 mm = 889.0 mm  90-114 mm = 939.0 mm 351/353 354/355 Morse taper shank ISO 296 type BEK Special solutions with powder steel twist drill and annular cutter up to  150 mm |  5.906" Shank DIN 1835-B Lateral fixation type flange shank Shank DIN 1835-B Lateral fixation type flange shank Morse taper shank ISO 296 type BEK Morse taper shank ISO 296 type BEK Helical flute Drills rotate, work piece does not rotate. E.g. vertical or radial drilling machines. The most commonly used holders are with helical flute. Straight flute Drills does not rotate, work piece rotates. E.g. lathe. For casting materials, the straight flute versions are always better. It does not matter whether the drill or the work piece rotates. Helical flute Drills rotate, work piece does not rotate. E.g. vertical or radial drilling machines. The most commonly used holders are with helical flute. Straight flute Drills does not rotate, work piece rotates. E.g. lathe. For casting materials, the straight flute versions are always better. It does not matter whether the drill or the work piece rotates. 11 Index 10 9 OIL 8 7 6 5 4 3 2 1