Slater Tools: Number one for Rotary Branding

Thrust Lbs. for Internal/External Broaching for Common Materials

Internal Broaches - Approximate Thrust Lbs. for Broaching

Form Aluminum
(6061)
60 Brinell		 F.C Brass
(360)
78 Brinell		 Screw Stk.
(12L14)
163 Brinell		 Alloy
(8620)
187 Brinell		 F.C. S.S.
(303SS)
160 Brinell		 Super
Alloy
200 Brinell		 Pre-Heated
Treated
277 Brinell
1/8" Sq. 90 95 120 150 177 200 228
1/2" Sq. 1430 1670 1910 2385 2623 3100 3534
1" Sq. 5700 6650 7600 9500 11,400 12,350 14,250
1/8" Hex 41 48 54 68 81 88 148
1/2" Hex 636 742 848 1060 1272 1378 1571
1" Hex 2530 2950 3371 4215 5060 5480 6251
  Serrations
3/8" 14 Teeth 199 232 265 332 397 431 497
1" 36 Teeth 1414 1650 1885 2356 2827 3063 3535

 

 

 

External Broaches - Approximate Thrust Lbs. for Broaching

Form Aluminum
(6061)
60 Brinell		 F.C Brass
(360)
78 Brinell		 Screw Stk.
(12L14)
163 Brinell		 Alloy
(8620)
187 Brinell		 F.C. S.S.
(303SS)
160 Brinell		 Super
Alloy
200 Brinell		 Pre-Heated
Treated
277 Brinell
1/8" Sq. 114 133 152 190 228 247 285
1/2" Sq. 1696 979 2262 2827 3393 3676 4241
1" Sq. 6786 7919 9048 11,310 13,571 14,703 16,964
1/8" Hex 52 61 69 87 104 113 190
1/2" Hex 785 917 1047 1310 1570 1702 1964
1" Hex 3142 3666 4188 5236 6284 6807 7765
  Serrations
3/8" 14 Teeth 193 232 265 332 397 431 497
1" 36 Teeth 1414 1650 1885 2356 2827 3063 3535