Page 34 - HOLE MAKING CATALOG p185-310

DEEP DRILLING - BTA SYSTEM USER GUIDE
Wear resistance
Guide pads Please replace the filler with
the top guide pad when:
Guide pads are subject to wear, like inserts.
• Each guide pad can be used on two sides. When • High hole accuracy is required
• L/D (hole length-to-diameter) ratio is greater than 50:1
the first corner wears out 70% of the width, reverse • Drilling a workpiece which has a tail stock hole
the guide pad to use the second corner. • The DOC required is greater than the range of the
• Replace with a new guide pad when
the second corner wears out. peripheral insert for counterboring. *See chart below.

IC950 Guide pad Protector
Top guide
IC908 Filler

IC928 *Maximum DOC of peripheral insert

Drill Diameter D (mm) Cartridge DOC (mm) Guide pad
For higher wear resistance CAOD-0845 6.4 GPS-08.../GPS-10...
• High wear-resistant grade CAOD-103 7.2 GPS-10.../GPS-14...
First recommendation CAOD-142 10.4 GPS-14.../GPS-18...
• Suitable for various workpiece materials CAOD-170 12.0 GPS-18...
• Long tool life due to unique substrate and coating
For higher fracture resistance For diameter less than 92 mm, the drill head is
• High fracture-resistant grade semi-standard using the top guide pad.
Please contact your dealer for further information.
Wear on the 1st corner
Guide Pad Key
100% 70% Screw

Reverse and use the 2nd corner GPS-05 SR 34-508 M2.2X0.45 T-7/5
GPS-06 SR 11201753-1 T-7/5
GPS-07 SR 11201753-4 T-9/5
GPS-08 SR 11201753-4 T-9/5
GPS-10 SR 11201753-8 T-15/5
GPS-12 SR 11201753-8 T-15/5
GPS-14 SR 11201752-2 T-15/5
GPS-18 SR 11201756-7S T-15/5

218 ISCAR