Square Broaches

standard-square-sketchduMONT 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 American Standard sizes (1/8″-1″).

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.

Receive a free quote for Standard Square Broaches or contact us for more information on Special Standard and Full Square Broaches.standard-square

EDP
No.
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.)
666011/8 .1255-.1265 4 1/8 .1285 No. 30 .1750-.1770 1/8 3/16-1/2 700
666025/32 .1565-.1575 5 1/8 .1590 No. 21 .2180-.2200 5/32 1/4-1/2 600
666033/16 .1880-.1890 5 9/16 .1935 No. 10 .2620-.2640 5/32 1/4-5/8 1080
666047/32 .2190-.2200 6 3/8 .2280 No. 1 .3060-.3080 3/16 1/4-3/4 1410
666051/4 .2505-.2515 6 1/2 .2656 17/64 .3510-.3530 3/16 1/4-3/4 1740
666069/32 .2815-.2825 7 3/4 .2969 19/64 .3930-.3950 7/32 5/16-1 2130
666075/16 .3130-.3140 7 7/8 .3281 21/64 .4370-.4390 7/32 3/8-1 2100
6660811/32 .3440-.3450 9 3/8 .3594 23/64 .4830-.4850 1/4 3/8-1 1/4 3480
666093/8 .3755-.3765 9 3/8 .3906 25/64 .5240-.5260 1/4 3/8-1 1/4 3720
6661013/32 .4065-.4075 10 5/8 .4219 27/64 .5690-.5710 9/32 1/2-1 3/8 4080
666117/16 .4380-.4390 10 7/8 .4531 29/64 .6110-.6130 5/16 1/2-1 3/8 4500
6661215/32 .4690-.4700 12 .5000 1/2 .6570-.6590 5/16 1/2-1 3/8 4000
666131/2 .5005-.5015 12 .5312 17/32 .6990-.7010 5/16 1/2-1 3/8 4500
666149/16 .5630-.5640 14 3/4 .5938 19/32 .7870-.7890 3/8 1/2-1 1/2 5700
666155/8 .6260-.6270 16 5/16 .6562 21/32 .8730-.8750 7/16 5/8-1 5/8 5920
6661611/16 .6885-.6895 17 3/4 .7500 3/4 .9630-.9650 7/16 5/8-1 5/8 4800
666173/4 .7510-.7520 17 3/4 .8125 13/16 1.0450-1.0470 7/16 5/8-1 5/8 5940
666187/8 .8765-.8775 22 3/4 .9375 15/16 1.2270-1.2290 7/16 5/8-2 9200
666191 1.0020-1.0030 24 1/8 1.0938 1 3/32 1.4030-1.4050 7/16 5/8-2 9200

*based on mild steel
**tolerances-basic minus .0005-.001 inches