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American Keyway Broaches

American Broach manufacturers all types of machines and tooling to produce keyways including keyway broach tools workhorns single spline pull broaches and arbors with inserts and pullers.

SPECIFY ON ORDER WHETHER NOTCHED OR THREADED SHANK DESIRED

Units on chart are in inches.  Metric sizes are also available.

 500
Series

 600
Series

A (keyway width)

Toler-
ance.

Min.
Hole
Size

*Min.
Length
Cut

Max
Length
Cut

 B

C

D

E

F

G

No.
of
Cuts.

Thread Size††
Nominal Decimal
501

601

1/16

.0635

+/- .0002

3/8

3/8

1-1/4

.1552

20

.313

.271

7-13/16

.042

 1
 1/4 -20
502
602
3/32
.0948
+/- .0002
7/16
1/2
1-1/2
.1865
24
.367
.309
8-1/4
.058
1
5/16-18
503
603
3/32
.0948
+/- .0002
5/8
5/8
2-1/2
.249
33
.491
.433
10
.058
1
3/8-16
†504
†604
1/8
.126
+/- .0002
1/2
1/2
1-1/2
.249
30
.438
.364
9
.074
1
3/8-16
505
605
1/8
.126
+/- .0002
11/16
5/8
2-1/2
.3115
36
.594
.520
10
.074
1
1/2-13
506
606
5/32
.1572
+/- .0002
19/32
1/2
1-1/2
.249
30
.525
.436
9
.089
1
3/8-16
507
607
5/32
.1572
+/- .0002
23/32
5/8
2-1/2
.3115
33
.625
.536
10
.089
1
1/2-13
†508
†608
3/16
.1885
+/- .0002
11/16
5/8
2-1/2
.374
36
.581
.476
10
.105
1
1/2-13
509
609
3/16
.1885
+/- .0002
15/16
11/16
3-1/2
.374
36
.796
.691
10-11/16
.105
1
1/2-13
510
610
7/32
.2198
+/- .0002
11/16
5/8
2-1/2
.374
33
.557
.437
10
.120
1
1/2-13
511
611
7/32
.2198
+/- .0002
15/16
11/16
3-1/2
.374
42
.813
.693
11-1/16
.120
1
1/2-13
†512
†612
1/4
.251
+/- .0002
3/4
5/8
2-1/2
.374
36
.612
.476
10
.136
1
1/2-13
†513
†613
1/4
.251
+/- .0002
1
11/16
4
.499
45
.877
.741
11-13/16
.136
1
5/8-11
514
614
1/4
.251
+/- .0002
1-3/8
7/8
6
.624
51
1.250
1.114
13-1/2
.136
1
3/4-10
515
615
9/32
.2828
+/- .0002
7/8
11/16
4
.499
42
.716
.564
11-5/8
.152
1
5/8-11
516
616
9/32
.2828
+/- .0002
1-1/4
7/8
6
.499
51
1.093
.941
13-1/2
.152
1
5/8-11
†517
†617
5/16
.314
+/- .0002
1-1/16
11/16
4
.499
45
.908
.741
11-13/16
.167
1
5/8-11
518
618
5/16
.314
+/- .0002
1-5/16
7/8
6
.499
51
1.158
.991
13-1/2
.167
1
5/8-11
†519
†619
3/8
.3765
+/- .0002
1-1/16
11/16
4
.499
45
.938
.739
11-13/16
.199
1
5/8-11
520
620
3/8
.3765
+/- .0002
1-5/16
7/8
6
.499
54
1.189
.990
13-1/2
.199
1
5/8-11
521
621
7/16
.439
+/- .0002
1-9/16
11/16
4
.624
48
1.390
1.160
12
.230
1
3/4-10
522
622
7/16
.439
+/- .0002
1-3/4
1
8
.624
48
1.611
1.496
15-5/8
.230
2
3/4-10
†523
†623
1/2
.5015
+/- .0002
1-1/2
11/16
4
.624
48
1.312
1.051
12
.261
1
3/4-10
†524
†624
1/2
.5015
+/- .0002
1-9/16
1
8
.624
48
1.377
1.246
16-1/2
.261
2
3/4-10
525
625
9/16
.5645
+/- .0002
1-11/16
11/16
4
.6865
54
1.438
1.146
11-13/16
.292
1
1-8
526
626
9/16
.5645
+/- .0003
1-5/8
1
8
.6865
51
1.391
1.245
16
.292
2
1-8
527
627
9/16
.5645
+/- .0003
1-15/16
1-1/2
12
.874
60
1.641
1.495
20
.292
2
1-8
528
628
5/8
.627
+/- .0003
1-7/8
11/16
4
.749
60
1.625
1.301
12-3/16
.324
1
1-8
529
629
5/8
.627
+/- .0003
1-15/16
1
8
.874
54
1.657
1.495
16-3/8
.324
2
1-8
530
630
5/8
.627
+/- .0003
1-15/16
1-1/8
12
.874
57
1.657
1.495
20
.324
2
1-8
531
631
3/4
.752
+/- .0003
1-15/16
11/16
4
.874
60
1.625
1.239
12-3/16
.386
1
1-8
532
632
3/4
.752
+/- .0003
2-1/16
1
8
.999
60
1.688
1.495
16-1/4
.386
2
1-1/4 -7
533
633
3/4
.752
+/- .0003
2-1/16
1-1/2
12
.999
57
1.688
1.560
20
.386
3
1-1/4 -7
534
634
7/8
.877
+/- .0003
2-1/4
11/16
4
1.124
63
1.875
1.426
12-3/8
.449
1
1-1/4 -7
535
635
7/8
.877
+/- .0003
2-1/8
1
8
1.124
63
1.719
1.495
15-1/4
.449
2
1-1/4 -7
536
636
7/8
.877
+/- .0003
2-1/8
1-1/8
12
1.124
63
1.719
1.569
20
.449
3
1-1/4 -7
537
637
1
1.002
+/- .0003
2-1/4
5/8
2-1/2
1.249
63
1.750
1.239
10-1/2
.511
1
1-1/2 -8
538
638
1
1.002
+/- .0003
2-1/4
7/8
6
1.249
63
1.750
1.494
14-1/4
.511
2
1-1/2 -8
539
639
1
1.002
+/- .0003
2-1/4
1-1/8
12
1.249
60
1.750
1.580
20
.511
3
1-1/2 -8


*Minimum length of part recommended to prevent part from dropping between teeth of broach.
†In Stock
††Diameter - Threads per Inch.

© American Broach & Machine Company Ann Arbor Michigan.