Broaching Needs

 

Mason Mechanical Labs, is a proud dealer of duMONT Broaches and accessories. duMONT has been designing and manufacturing broaches since 1945, and know throughout the world for quality, durability and engineering detail. duMONT can cover whatever your broaching needs may require, through normal broaching styles to specially designed broaches to meet your specification. Quality assured through their ISO 9002 certicfication in meeting these exacting standards.

Call Mason Mechanical Labs at:

1-800-925-1838

 

We Offer The Following duMONT Broaches

Broach Sets
Keyway Broaches
Production Broaches
Keyseating Broaches
Square Broaches
Hexagon broaches
Round Broaches
Pull Type Broaches
Special Broaches

 

Broach Sets

Applications:

  • Short Run Production
  • General Maintenance

All Broach Sets are furnished in varnished wood boxes, and come complete with precision broaches, clotted bushing and necessary shims.

 

* TiN Coating available
Availability
Set #
Inch/Metric
# Broaches / # Bushings
Keyway Combinations
Keyway Size
Broach Style
Bushing Dia. (bore sizes)
00
Inch
3/5
15
1/16, 3/32, 1/8
A
1/4, 5/16, 3/8, 7/16, 1/2
10
Inch
4/9
18

1/8, 3/16

1/4, 3/8

B

C

1/2, 5/8, 3/4, 7/8

1, 1-1/8, 1-1/4, 1-3/8, 1-1/2
10A
Inch
4/9
18

1/8, 3/16

1/4, 3/8

B

C

9/16, 11/16, 13/16

15/16, 1-1/16, 1-3/16, 1-5/16, 1-7/16, 1-9/16
10-10A
Inch
4/18
36

1/8

3/16

1/4

3/8

B

B

C

C

1/2, 9/16, 5/8, 11,16

3/4, 13/16, 7/8

15/16, 1, 1-1/16, 1-1/8, 1-3/16

1-1/4, 1-5/16, 1-3/8, 1-7/16, 1-1/2, 1-9/16
20
Inch
5/18
47

1/8

3/16

1/4

5/16

3/8

B

B

C

C

C

1/2, 9/16, 5/8, 11/16

3/4, 13/16, 7/8

15/16, 1, 1-1/16, 1-1/8, 1-3/16

1-1/4, 1-5/16, 1-3/8

1-7/16, 1-1/2, 1-9/16
40A
Inch
4/8
32

5/16, 3/8

7/16, 1/2

D

D

1-1/2, 1-5/8, 1-3/4, 1-7/8

2, 2-1/8, 2-1/4, 2-1/2
40
Inch
4/8
32

5/16, 3/8

7/16, 1/2

D

D

1-7/16, 1-9/16, 1-11/16, 1-13/16

1-15/16, 2-3/16, 2-7/16, 2-15,16
40-1/2A
Inch
2/6
12

5/8

3/4

E

E

2-3/8, 2-1/2, 2-5/8

2-3/4, 2-7/8, 3
40-1/2
Inch
2/6
12

5/8

3/4

E

E

2-5/16, 2-7/16, 2-9/16

2-11/16, 2-13/16, 2-15,16
50
Inch
3/17
29

1/2

5/8

3/4

D

E

E

2, 2-1/16, 2-1/8, 2-3/16, 2-1/4

2-5/16, 2-3/8, 2-7/16, 2-1/2, 2-9/16, 2-5/8

2-11/16, 2-3/4, 2-13/16, 2-7/8, 2-15,16, 3
100
Inch
9/44
102

1/8

3/16

1/4

5/16

3/8

7/16

1/2

5/8

3/4

B

B

C

C

D

D

D

E

E

1/2, 9/16

5/8, 11/16, 3/4, 13/16, 7/8

15/16, 1, 1-1/16, 1-1/8, 1-3/16, 1-1/4

1-5/16, 1-3/8, 1-7/16, 1-1/2, 1-9/16

1-7/16, 1-1/2, 1-9/16, 1-5/8, 1-11/16

1-3/4, 1-13/16, 1-7/8, 1-15/16, 2

2-1/16, 2-1/8, 2-3/16, 2-1/4

2-5/16, 2-3/8, 2-7/16, 2-1/2, 2-9/16, 2-5/8

2-11/16, 2-3/4, 2-13/16, 2-7/8, 2-15/16, 3
60
Metric
2/3
6

2mm

3mm

A

A
6, 8, 10
70
Metric
4/13
26

4mm

5mm

6mm

8mm

B-1

B-1

C-1

C-1

12, 14

15, 16

18, 19, 20, 22

24, 25, 26, 28, 30
80
Metric
3/12
36

10mm

12mm

14mm

D-1

D-1

D-1

32, 34, 35, 36

38, 40, 42, 44

45, 46, 48, 50
90
Metric
2/8
16

16mm

18mm

E-1

E-1

52, 54, 55, 56

58, 60, 62, 65

Keyway Broaches

Applications:

  • Short Run Production
  • General Maintenance

All required shims are provided.

* TiN Coating available
Availability
Inch Sizes
Part #
Size
Tolerances
Dimensions
Tooth Pitch
No. Teeth
Max. Cut Length
22201
1/16-A
0.0625-0.0635
1/8 x 5
3/16
18
1-1/8
22202
3/32-A
0.0938-0.0948
1/8 x 5
3/16
18
1-1/8
22203
1/8-A
0.1252-0.1262
1/8 x 5
3/16
18
1-1/8
22204
3/32-B
0.0938-0.0948
3/16 x 6-3/4
9/32
16
1-11/16
22205
1/8-B
0.1252-0.1262
3/16 x 6-3/4
9/32
16
1-11/16
22206
5/32-B
0.1564-0.1574
3/16 x 6-3/4
9/32
16
1-11/16
22207
3/16-B
0.1877-0.1887
3/16 x 6-3/4
9/32
16
1-11/16
22208
3/16-C
0.1877-0.1887
3/8 x 11-3/4
3/8
22
2-1/2
22209
1/4-C
0.2502-0.2512
3/8 x 11-3/4
3/8
22
2-1/2
22210
5/16-C
0.3127-0.3137
3/8 x 11-3/4
3/8
22
2-1/2
22211
3/8-C
0.3755-0.3765
3/8 x 11-3/4
3/8
22
2-1/2
22212
5/16-D
0.3127-0.3137
9/16 x 13-7/8
5/8
17
6
22213
3/8-D
0.3755-0.3765
9/16 x 13-7/8
5/8
17
6
22214
7/16-D
0.4380-0.4390
9/16 x 13-7/8
5/8
17
6
22215
1/2-D
0.5006-0.5016
9/16 x 13-7/8
5/8
17
6
22216
5/8-E
0.6260-0.6270
3/4 x 15-1/2
5/8
20
6
22217
3/4-E
0.7515-0.7525
3/4 x 15-1/2
5/8
20
6
22218
7/8-F
0.8765-0.8775
1 x 20-1/4
5/8
26
6
22219
1-F
1.0015-1.0025
1 x 20-1/4
5/8
26
6
10171
1-1/8
1.1265-1.1275
1-1/8 x 20-1/4
5/8
26
6
10172
1-1/4
1.2520-1.2530
1-1/4 x 20-1/4
3/4
22
8
10173
1-3/8
1.3770-1.3780
1-3/8 x 20-1/4
3/4
22
8
10174
1-1/2
1.5020-1.5030
1-1/2 x 20-1/4
3/4
22
8
Metric Sizes
Part #
Size
Tolerances
Dimensions
Std MM Keys
Tooth Pitch
No. Teeth
Max. Cut Length
44401
2-A
0.0782-0.0791
1/8 x 5
2x2
3/16
18
1-1/8
44402
3-A
0.1176-0.1185
1/8 x 5
3x3
3/16
18
1-1/8
44403
4-B-1
0.15692-0.1579
1/4 x 6-3/4
4x4
9/32
16
1-11/16
44404
5-B-1
0.1963-0.1972
1/4 x 6-3/4
5x5
9/32
16
1-11/16
44405
5-C
0.1963-0.1972
3/8 x 11-3/4
5x5
3/8
22
2-1/2
44406
6-C-1
0.2356-0.2366
3/8 x 11-3/4
6x6
3/8
22
2-1/2
44407
8-C-1
0.3143-0.3155
3/8 x 11-3/4
8x7
3/8
22
2-1/2
44408
10-D-1
0.3930-0.3942
9/16 x 13-7/8
10x8
5/8
17
6
44409
12-D-1
0.4716-0.4730
9/16 x 13-7/8
12x8
5/8
17
6
44410
14-D-1
0.5503-0.5517
9/16 x 13-7/8
14x9
5/8
17
6
44411
16-E-1
0.6290-0.6304
3/4 x 15-1/2
16x10
5/8
20
6
44412
18-E-1
0.7078-0.7092
3/4 x 15-1/2
18x11
5/8
20
6
44413
20-F-1
0.7864-0.7880
1 x 20-1/4
20x12
5/8
26
6
44414
22-F-1
0.8651-0.8667
1 x 20-1/4
22x14
5/8
26
6
44415
24-F
0.9439-0.9455
1 x 20-1/4
24x14
5/8
26
6
44494
25-F-1
0.9832-0.9848
1 x 20-1/4
25x14
5/8
26
6

Production and One-Pass Broaches

Applications:

  • High Speed Operation
  • Accurate Long Run Production

Production Keyway Broaches are designed for large production runs of identical keyways with identical bores. No shims or bushings required.

* TiN Coating available
Availability
Production Keyway
Part #
Keyway Width
Body Dia.
Broach Dia w/key
Broach Length
Tooth Pitch
Max. Cut length
55520
1/16
3/16
0.224
5-5/8
3/16
1
55521
1/16
1/4
0.287
6-3/16
3/16
1
55522
1/8
3/8
0.437
8-1/2
1/4
1-1/4
55523
1/8
1/2
0.565
11-3/4
3/8
2-1/2
55524
1/8
9/16
0.630
11-3/4
3/8
2-1/2
55525
1/8
5/8
0.693
11-3/4
3/8
2-1/2
55526
3/16
5/8
0.716
14-3/4
3/8
2-1/2
55528
3/16
3/4
0.844
14-3/4
3/8
2-1/2
55530
3/16
7/8
0.970
14-3/4
3/8
2-1/2
55532
1/4
1
1.121
18
3/8
2-1/2
One-Pass Keyway
Part #
Keyway Width
Broach Dimensions
Tooth Pitch
Max. Cut Length
55501
1/8-C
3/8 x 14-1/8
9/32
2
55502
5/32-C
3/8 x 14-1/8
9/32
2
55503
3/16-C
3/8 x 17
9/32
2
55504
1/4-C
3/8 x 17
9/32
2
55505
5/16-C
3/8 x 18-1/2
9/32
2
55506
3/8-C
3/8 x 18-1/2
9/32
2

Keyseating Broaches

Applications:

  • For Davis Models 4, 5, 15 or similar keyseating machines

Feature superior tooth design and are ground to precision keyway tolerances. Sizes for cutting the most common keyway widths are available.

* TiN Coating available
Specifications
American Standard
Metric Standard (ISO)
Part #
Size
Length
Tooth Height
Tooth Pitch
Part #
Size
Length
Tooth Height
Tooth Pitch
55550
1/16*
16
3/8
3/8
55570
2mm*
16
3/8
3/8
55551
3/32*
16
3/8
3/8
55571
3mm*
16
7/16
3/8
55552
1/8*
16
7/16
3/8
55572
4mm
16
1/2
3/8
55553
5/32
16
1/2
3/8
55573
5mm
16
9/16
3/8
55554
3/16
16
9/16
3/8
55574
6mm
16
3/4
3/8
55555
1/4
16
3/4
3/8
55575
6mm
20
3/4
3/8
55556
1/4
20
3/4
3/8
55576
7mm
16
7/8
17/32
55557
5/16
16
7/8
17/32
55577
7mm
20
7/8
17/32
55558
5/16
20
7/8
17/32
55578
8mm
16
7/8
17/32
55559
3/8
16
7/8
17/32
55579
8mm
20
7/8
17/32
55560
3/8
20
7/8
17/32
55580
9mm
16
7/8
17/32
55561
7/16
20
1
17/32
55581
9mm
20
7/8
17/32
55562
1/2
20
1
17/32
55582
10mm
20
7/8
17/32
55563
9/16
20
1
17/32
55583
11mm
20
1
17/32
55564
5/8
20
1
17/32
55584
12mm
20
1
17/32
55565
3/4
20
1
17/32
55585
13mm
20
1
17/32
55566
7/8
20
1
17/32
55586
14mm
20
1
17/32
55567
1
20
1
17/32
55587
15mm
20
1
17/32
* Reinforced body width 3/16 inches thick.
55588
16mm
20
1
17/32
55589
17mm
20
1
17/32
55590
18mm
20
1
17/32
55591
19mm
20
1
17/32
55592
20mm
20
1
17/32
55593
22mm
20
1
17/32
55594
24mm
20
1
17/32
55595
25mm
20
1
17/32

Square Push Broaches

Applications:

  • Drives jigs, fixtures and other square broaching operations

Full Square Broaches, which leave no radius in the flats of the broached piece are also available. The pilot diameter will equal the finished square size. Please specify "Full Square" if this is the style of broaching you need, when checking on broach sizing and availability.

* TiN Coating available
Availability
Inch Sizes
Part #
Square Size
Tolerances
Length
Pilot Dia.
Drill Size
Tooth Pitch
Max. Cut Length
66601
1/8
0.1255-0.1265
4-1/8
0.1285
No. 30
1/8
1/2
66602
5/32
0.1565-0.1575
5-1/8
0.1590
No. 21
5/32
1/2
66603
3/16
0.1880-0.1890
5-9/16
0.1935
No. 10
5/32
5/8
66604
7/32
0.2190-0.2200
6-3/8
0.2280
No. 1
3/16
3/4
66605
1/4
0.2505-0.2515
6-1/2
0.2656
17/64
3/16
3/4
66606
9/32
0.2815-0.2825
7-3/4
0.2969
19/64
7/32
1
66607
5/16
0.3130-0.3140
7-7/8
0.3281
21/64
7/32
1
66608
11/32
0.3440-0.3450
9-3/8
0.3594
23/64
1/4
1-1/4
66609
3/8
0.3755-0.3765
9-3/8
0.3906
25/64
1/4
1-1/4
66610
13/32
0.4065-0.4075
10-5/8
0.4219
27/64
9/32
1-3/8
66611
7/16
0.4380-0.4390
10-7/8
0.4531
29/64
5/16
1-3/8
66612
15/32
0.4690-0.4700
12
0.5000
1/2
5/16
1-3/8
66613
1/2
0.5005-0.5015
12
0.5312
17/32
5/16
1-3/8
66614
9/16
0.5630-0.5640
14-3/4
0.5938
19/32
3/8
1-1/2
66615
5/8
0.6260-0.6270
16-5/16
0.6562
21/32
7/16
1-5/8
66616
11/16
0.6885-0.6895
17-3/4
0.7500
3/4
7/16
1-5/8
66617
3/4
0.7510-0.7520
17-3/4
0.8125
13/16
7/16
1-5/8
66618
7/8
0.8765-0.8775
22-3/4
0.9375
15/16
7/16
2
66619
1
1.002-1.0030
24-1/8
1.0938
1-3/32
7/16
2
Metric Sizes
Part #
Square Size
Tolerances
Length
Pilot Dia.
Drill Size
Tooth Pitch
Max. Cut Length
66630
4mm
0.1575-0.1580
5-1/8
0.1614
4,1
5/32
1/2
66631
5mm
0.1968-0.1973
6-1/2
0.2047
5,2
5/32
1/2
66632
6mm
0.2362-0.2370
6-11/16
0.2519
6,4
3/16
3/4
66633
7mm
0.2756-0.2765
7-3/4
0.2913
7,4
7/32
1
66634
8mm
0.3150-0.3158
7-7/8
0.3307
8,4
7/32
1
66635
10mm
0.3937-0.3945
10-1/4
0.4094
10,4
1/4
1-1/4
66636
12mm
0.4724-0.4732
12
0.5039
12,8
5/16
1-3/8
66637
14mm