Iscar 5505121 Carbide Replaceable Tip Drill IC908 Tialn

Product Description

The ISCAR 5505121 is a solid carbide replaceable tip drill insert designed for the IDI-SG modular drilling system. Identified by ISO number IDI 179-SG and manufactured in grade IC908 submicron carbide, this insert features a TiAlN PVD coating and a 140-degree included angle with a thinned web point geometry. The cutting diameter is 0.705 inches (17.91 mm) and the insert height is 0.291 inches (7.39 mm). It is installed and exchanged by machining professionals in job shop and production environments where consistent hole quality and rapid tip replacement are required.

This replaceable tip insert is intended for use in IDI-SG series drill bodies with an insert seat size of 17. The IC908 grade and TiAlN coating make it suitable for drilling steel, stainless steel, cast iron, superalloys, titanium, and hard materials. It is a general-purpose insert appropriate for a broad range of ferrous and difficult-to-machine workpiece materials encountered in precision machining, aerospace component work, and heavy equipment manufacturing. The slow spiral, two-flute configuration supports controlled chip evacuation in these material groups.

Key Features

• IC908 submicron solid carbide grade for wear resistance in demanding workpiece materials
• TiAlN PVD coating provides thermal and oxidation resistance during high-speed drilling
• 140-degree included angle with web-thinned point reduces entry thrust and improves centering
• Slow spiral, two-flute design supports chip control in steel, stainless, cast iron, superalloys, titanium, and hard materials
• Replaceable tip format allows rapid insert exchange without removing the drill body from the spindle
• Conforms to ISO 13399 cutting tool data standards

Compatibility

Designed for use with ISCAR IDI-SG series modular drill bodies requiring an insert seat size of 17, as identified by ISO number IDI 179-SG. Verify insert seat size and series designation against the drill body specification before ordering.

Installation Notes

Installation and replacement of indexable drill inserts should be performed by a qualified machinist or tooling technician with the machine in a locked-out, de-energized state. Use the manufacturer-specified torx or wrench key to seat the insert securely in the pocket; do not over-torque or use improvised tools. Inspect the insert seat and clamping surfaces for chips or debris before seating a new tip. Follow the machine tool builder and tooling manufacturer guidelines for runout verification after tip replacement.