Iscar 3106630 Indexable Square-shoulder End Mill

Product Description

The ISCAR 3106630 is a 4-flute indexable square-shoulder end mill from the HeliIQMill series, designed for high-productivity milling operations in metalworking and precision machining environments. Built on a solid carbide body with a cylindrical shank, it accepts HM390 TPKT 1003 inserts secured by screw clamping. The cutter diameter is 1.25 inches with a maximum depth of cut of 0.315 inches and a 90-degree lead angle that produces true square shoulders. Through-coolant capability supports extended tool life and chip evacuation during demanding cuts. This toolholder is intended for use by machinists and CNC operators in job shop, aerospace, and production machining settings.

The 3106630 is suited for square-shoulder milling on ferrous and non-ferrous materials where a 90-degree wall angle is required. The helical flute geometry and through-coolant design make it appropriate for both roughing and semi-finishing passes. It is cataloged under ISCAR part number HM390 ETP D1.25-4-C1.25-B and is compatible with machines that accept a 1.25-inch cylindrical shank. The HeliIQMill platform is commonly found in aerospace, die and mold, and general-purpose CNC milling cells requiring reliable indexable insert performance.

Key Features

• 90-degree lead angle produces true square shoulders in a single pass
• Through-coolant design improves chip evacuation and extends insert life
• Screw-clamped HM390 TPKT 1003 insert compatibility for secure seating under load
• 4-flute helical geometry balances metal removal rate with surface finish quality
• Solid carbide body provides rigidity and dimensional stability
• Certified to AS 9100 and ISO 9001:2008 quality standards, supporting aerospace supply chain requirements

Compatibility

Designed for use with HM390 TPKT 1003 insert style. Fits machines accepting a 1.25-inch cylindrical shank. ISCAR catalog reference: HM390 ETP D1.25-4-C1.25-B.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully powered down and the machine is in a safe, locked-out state before mounting or removing the toolholder. Verify shank seating depth against the machine spindle specification before securing. Follow the insert manufacturer torque guidelines for the insert clamping screw to avoid seat damage.