5/16" Square BR Carbide Toolbit- Grade 370 for steel - Made in USA
Model #: CTB-BR5-370
Description: 5/16" Sq. BR Carbide Toolbit, USA for steel: 370/370E/C5/C6, 1012-0074
- Shank Size: 5/16" Square x 2 1/4"
- Grade: 370
- Shape: BR (for right hand cuts with a 15 degree lead angle)
- Grade 370 is for cutting steel.
- Made in USA.
Guide to brazed tool bit shapes:
AR cuts right hand to a square shoulder.
AL cuts left hand to a square shoulder.
BR cuts right hand with a 15 degree lead angle.
BL cuts left hand with a 15 degree lead angle.
C is square nose for chamfering, facing, and turning.
D has 80 degree point for undercutting, ID and Outside Diameter chamfering.
E has 60 degree point for threading.