Made in the USA
Square Broaches
duMONT Minute Man® Full Square Broaches are designed to generate in one-pass a Full Square hole in a previously cast or drilled round hole. The broach leaves no radii on the flats of the broached piece and the pilot diameter equals the finished full square size. Full Square Broaches are available from stock in the most common American Standard sizes (3/16"-1/2").
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 |
Dimension Across Corners |
Tooth Pitch |
Length of Cut*min.-max. | Pressure Req'd for Max LOC*(lbs.) |
|---|---|---|---|---|---|---|---|---|---|---|
| 66403 | 3/16 | .1880-.1890 | 6 | 3/16 | 3/16 | .2630-.2650 | 1/8 | 3/16 - 1/2 | 870 | |
| 66405 | 1/4 | .2505-.2515 | 8 1/2 | 1/4 | 1/4 | .3510-.3530 | 5/32 | 1/4 - 5/8 | 1310 | |
| 66407 | 5/16 | .3130-.3140 | 10 1/2 | 5/16 | 5/16 | .4390-.4410 | 3/16 | 5/16 - 7/8 | 1895 | |
| 66409 | 3/8 | .3755-.3765 | 13 1/8 | 3/8 | 3/8 | .5260-.5280 | 7/32 | 5/16 - 1 | 2410 | |
| 66411 | 7/16 | .4385-.4395 | 14 1/4 | 7/16 | 7/16 | .6140-.6160 | 7/32 | 5/16 - 1 | 3090 | |
| 66413 | 1/2 | .5005-.5015 | 14 3/4 | 1/2 | 1/2 | .7010-.7030 | 1/4 | 3/8 - 1 | 3860 |
*based on mild steel
**tolerances-basic minus .0005-.001 inches
