REAMER SELECTION GUIDE
BASED ON HOLE CONDITION
CARBIDE LENGTH
  • Use flute long carbide for hole depths exceeding maximum shallow depth
    Hole Diameter Max. Shallow Hole Depth
    .1875" thru .3125" .500"
    .3126" thru .7188" .625"
    .7189" thru 1.0625" .750"
    1.0626" thru 1.5000" .875"
     
FLUTE STYLES
  • Straight Flutes - Good in a wide variety of applications
  • Right Spiral Flutes - Tend to bridge interruptions such as keyways, slots or intersecting holes; Good chip clearing ability for ductile materials and blind holes
  • Left Spiral Flutes - Also tend to bridge interruptions; Good for cast irons, heat treated steels and other hard materials; Do not use in blind holes
  • Expansion Reamers - Economical for abrasive materials
MATERIAL
CHIP CLASS
FLUTE
STYLE
THRU HOLE BLIND HOLE
SHALLOW DEEP SHALLOW DEEP
STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK
20
ALUMINUM ALLOY
COPPER ALLOY (TOUGH)
LEAD ALLOY
NON-METAL & PLASTIC
ZINC ALLOY
GENERAL PURPOSE TYPES
SPIRAL 420
422
440
- 410
412
- -
STRAIGHT 400
402
450
452
400
402
450
452
EXPANSION 465
467
465
467
465
467
465
467
MATERIAL SPECIFIC TYPES
SPIRAL 433
- 482
- 432
- 442
-
STRAIGHT 407
472
457
453
407
472
457
453
EXPANSION 464
461
464
461
464
461
464
461
COOLANT FED TYPES
SPIRAL 427
- 427
- 411
- 411
-
STRAIGHT 416
- 416
- 414
- 414
-
MATERIAL
CHIP CLASS
FLUTE
STYLE
THRU HOLE BLIND HOLE
SHALLOW DEEP SHALLOW DEEP
STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK
40
ALUMINUM BRONZE
BRASS
BRONZE
MAGNESIUM ALLOY
NICKEL SILVER
GENERAL PURPOSE TYPES
SPIRAL 420
422
440
- 410
412
- -
STRAIGHT 400
402
450
452
400
402
450
452
EXPANSION 465
467
465
467
465
467
465
467
MATERIAL SPECIFIC TYPES
SPIRAL 433
- 482
- 432
- 442
-
STRAIGHT 407
472
457
453
407
472
457
453
EXPANSION 464
461
464
461
464
461
464
461
COOLANT FED TYPES
SPIRAL 427
- 427
- 411
- 411
-
STRAIGHT 416
- 416
- 414
- 414
-
MATERIAL
CHIP CLASS
FLUTE
STYLE
THRU HOLE BLIND HOLE
SHALLOW DEEP SHALLOW DEEP
STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK
60
DUCTILE CAST IRON
GRAY CAST IRON
MALLEABLE CAST IRON
NODULAR CAST IRON
GENERAL PURPOSE TYPES
SPIRAL 420
422
440
- 410
412
- -
STRAIGHT 400
402
450
452
400
402
450
452
EXPANSION 465
467
465
467
465
467
465
467
MATERIAL SPECIFIC TYPES
SPIRAL 437
- 483
- 436
- 443
-
STRAIGHT 408
473
458
454
408
473
458
454
EXPANSION 466
462
466
462
466
462
466
462
COOLANT FED TYPES
SPIRAL 428
- 428
- 413
- 413
-
STRAIGHT 426
- 426
- 424
- 424
-
MATERIAL
CHIP CLASS
FLUTE
STYLE
THRU HOLE BLIND HOLE
SHALLOW DEEP SHALLOW DEEP
STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK
80 - 100 - 120
LOW STRENGTH STEEL
MEDIUM STRENGTH STEEL
HIGH STRENGTH STEEL
TOOL STEEL
GENERAL PURPOSE TYPES
SPIRAL 420
422
440
- 410
412
- -
STRAIGHT 400
402
450
452
400
402
450
452
EXPANSION 465
467
465
467
465
467
465
467
MATERIAL SPECIFIC TYPES
SPIRAL 439
- 484
- 438
- 444
-
STRAIGHT 409
480
474
459
480
455
409
480
474
459
480
455
EXPANSION 468
463
468
463
468
463
468
463
COOLANT FED TYPES
SPIRAL 429
- 429
- 415
- 415
-
STRAIGHT 435
- 435
- 434
- 434
-
MATERIAL
CHIP CLASS
FLUTE
STYLE
THRU HOLE BLIND HOLE
SHALLOW DEEP SHALLOW DEEP
STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK STR. SHANK TPR. SHANK
140
IRON BASE ALLOY
NICKEL BASE ALLOY
300 SERIES STAINLESS
400 SERIES STAINLESS
PH SERIES STAINLESS
TITANIUM ALLOY
GENERAL PURPOSE TYPES
SPIRAL 420
422
440
- 410
412
- -
STRAIGHT 400
402
450
452
400
402
450
452
EXPANSION 465
467
465
467
465
467
465
467
MATERIAL SPECIFIC TYPES
SPIRAL 439
- 484
- 438
- 444
-
STRAIGHT 409
474
459
455
409
474
459
455
EXPANSION 468
463
468
463
468
463
468
463
COOLANT FED TYPES
SPIRAL 429
- 429
- 415
- 415
-
STRAIGHT 435
- 435
- 434
- 434
-