Made in the USA
Square Broaches
duMONT Minute Man® Standard Square Broaches are designed to generate in one-pass a Standard Square hole in a previously cast or drilled round hole. Standard Square Broaches begin in an oversized pilot hole and generate the square hole while leaving small radii on the flats. Available from stock in the most common Metric sizes (4mm-25mm).
Specials: We are fully equipped to manufacture Special Standard and Full Square Broaches to your specifications. All standard items are available with TiN, or TiAlN coatings. Please contact factory for details.
| EDP No. |
Square Size |
Square Size |
Tolerances (Dec. Equiv.) |
Broach Length |
Pilot Diameter** |
Drill Size mm |
Dimension Across Corners |
Tooth Pitch |
Length of Cut*min.-max. | Pressure Req'd for Max LOC*(lbs.) |
|---|---|---|---|---|---|---|---|---|---|---|
| 66630 | 0 | 4mm | .1575-.1580 | 5 1/8 | .1614 | 4,1 | .2205-.2220 | 5/32 | 1/4 - 1/2 | 480 |
| 66631 | 0 | 5mm | .1968-.1973 | 6 1/2 | .2047 | 5,2 | .2765-.2780 | 5/32 | 1/4 - 1/2 | 800 |
| 66632 | 0 | 6mm | .2362-.2370 | 6 11/16 | .2519 | 6,4 | .3300-.3320 | 3/16 | 1/4 - 3/4 | 1300 |
| 66633 | 0 | 7mm | .2756-.2764 | 7 3/4 | .2913 | 7,4 | .3850-.3870 | 7/32 | 3/8 - 1 | 1800 |
| 66634 | 0 | 8mm | .3150-.3158 | 7 7/8 | .3307 | 8,4 | .4400-.4420 | 7/32 | 3/8 - 1 | 2300 |
| 66639 | 0 | 9mm | .3543-.3551 | 9 3/8 | .3701 | 9,4 | .4970-.4990 | 1/4 | 3/8 - 1 1/4 | 3500 |
| 66635 | 0 | 10mm | .3937-.3945 | 10 1/4 | .4094 | 10,4 | .5530-.5550 | 1/4 | 3/8 - 1 1/4 | 3600 |
| 66636 | 0 | 12mm | .4724-.4732 | 12 | .5039 | 12,8 | .6620-.6640 | 5/16 | 1/2 - 1 3/8 | 4200 |
| 66637 | 0 | 14mm | .5512-.5520 | 14 3/4 | .5826 | 14,8 | .7730-.7750 | 3/8 | 1/2 - 1 1/2 | 5600 |
| 66638 | 0 | 16mm | .6302-.6310 | 16 5/16 | .6614 | 16,8 | .8790-.8810 | 7/16 | 5/8 - 1 5/8 | 6000 |
| 66640 | 0 | 18mm | .7090-.7097 | 17 7/8 | .7716 | 19,6 | .9930-.9950 | 7/16 | 5/8 - 1 5/8 | 5200 |
| 66641 | 0 | 20mm | .7874-.7882 | 20 7/8 | .8504 | 21,6 | 1.1030-1.1050 | 7/16 | 5/8 - 1 5/8 | 6600 |
| 66642 | 0 | 22mm | .8663-.8671 | 22 3/4 | .9291 | 23,6 | 1.2130-1.2150 | 7/16 | 5/8 - 2 | 8900 |
| 66643 | 0 | 24mm | .9453-.9460 | 24 | 1.0079 | 25,6 | 1.3230-1.3250 | 7/16 | 5/8 - 2 | 9200 |
| 66644 | 0 | 25mm | .9845-.9852 | 24 1/8 | 1.0630 | 27,0 | 1.3790-1.3810 | 7/16 | 5/8 - 2 | 9200 |
*based on mild steel
**tolerances-basic minus .0005-.001 inches
