AMPC_US-EN

DRILLING | 4TEX® Drill: Indexable Carbide Insert Drilling System

Center Height Alignment Proper Center Line Position

A

x-axis of machine

DRILLING

Center Line

Core Area .020" (0.5 mm)

B

BORING

.020" (0.5 mm)

.007" (0.2 mm)

C

Proper Center Height Alignment • The correct center height alignment will position the center insert .007" (0.2 mm) below the center line.

REAMING

Core

Center Insert

D

BURNISHING Center insert above center line

No core

Center Insert Above the Center Line • This will cause fracturing of the center insert • Requires center height adjustment

Center Insert

E

THREADING

.040" (1 mm)

.020" (0.5 mm)

Center Insert Too Far Below Center Line • This will cause the drill to interfere with the drilled hole • This will impede chip evacuation on the periphery insert • Requires center height adjustment

X

SPECIALS

Core

Center Insert

A55: 32

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