Page 446 - Hartner

Contents
Dimensions, definitions

Description Page

Dimensions - Taper shank twist drills 441
Dimensions - Straight shank twist drills 442
Materials for Hartner tools 443
Coatings and surface finishing 446
Conversion table: inch-millimetre 448
Shank designs for high speed straight shanks to DIN 1835 449
Shank designs for solid carbide straight shanks to DIN 6535 450
Shank designs for Morse taper with flat tang to DIN 228 form B 451
Tapping size holes for thread cutting 452
Recommended tapping size holes for thread forming 454
The new material abbreviations (selection) 456
Diameter tolerances 457
Twist drill definitions to DIN ISO 5419 458
Point geometries 459
Lip clearance angle/swarf removal frequency 460
Coolant pressure and flow rate 461
Application recommendations for twist drills ≤ 3 x D 462
Application recommendations for twist drills ≤ 5 x D 464
Application recommendations for twist drills ≤ 10 x D 474
Application recommendations for oil feed drills ≤ 10 x D and > 10 x D 476
Application recommendations for twist drills > 10 x D 478
Application recommendations for micro-precision drills 480
Application recommendations for TS-drills ≤ 3 x D 482
Application recommendations for TS-drills ≤ 4 x D / ≤ 5 x D 484
Application recommendations for TS-drills ≤ 7 x D, ≤ 10 x D and ≤ 12 x D 488
Application recommendations for TS-drills ≤ 15 x D and TS 100 T 490
Application recommendations for gun drills 492
Application recommendations for the Multiplex tooling system 494

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