118 176 vs 135 176 point angles on twist drills Weld Talk Message
2004 9 13 nbsp 0183 32 The advantages of a 118 176 point in these materials include control over chips which are wide and thin 135 176 split points should be engaged to cut harder steel materials and especially in deep holes over 4 times drill diameter A 135 176 point cutting harder materials will produce thicker chips thus minimizing work hardening of the cavity