Iscar 3181016 Indexable Square-shoulder End Mill

Product Description

The ISCAR 3181016 is an indexable square-shoulder end mill designed for precision milling operations in metal removal applications. Built on the Helialu series platform, this tool features a 90-degree lead angle and a 1-inch cutting diameter with a maximum depth of cut of 0.622 inches. The cylindrical shank measures 1 inch in diameter and 2.2 inches in length, giving the tool an overall length of 5 inches. A single indexable insert is held in place by a screw-locking method, and through-coolant capability keeps the cutting zone clear during high-speed passes. Licensed machinists and CNC setup technicians are the primary installers of this tooling.

The 3181016 is suited for square-shoulder milling on machining centers and CNC mills in both job-shop and production environments. The Helialu series geometry supports aggressive ramping entries up to 25.9 degrees, making it effective for pocket milling, slot entry, and face milling where a true 90-degree wall is required. With a maximum spindle speed of 7000 RPM, it handles a range of ferrous and non-ferrous workpiece materials. This tool is used in aerospace, general manufacturing, and precision metalworking applications.

Key Features

• 90-degree lead angle delivers true square shoulders in a single pass
• Maximum ramping angle of 25.9 degrees allows helical and ramp entries into pockets
• Through-coolant design directs fluid directly to the cutting edge for chip evacuation and heat control
• Screw-held indexable insert allows fast insert changes without removing the tool body from the spindle
• Rated to 7000 RPM maximum for compatibility with standard and high-speed machining centers
• Manufactured to AS 9100, ISO 9001:2008, ISO 14001:2004, ISO 50001, and OHSAS 18001:2007 standards

Compatibility

Designed for use with ISCAR Helialu series HM90 EAL-16 cutter-style tooling systems. Compatible inserts and additional specifications should be confirmed against the ISCAR Helialu series insert catalog for this cutter body style.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. The machine spindle must be fully stopped and the machine placed in a locked-out, de-energized state before changing or indexing any insert. Use the correct Torx or hex key driver to the insert screw specification listed in the ISCAR tooling guide — do not overtighten or substitute fasteners. Verify runout and tool projection with a dial indicator after mounting before initiating any cutting program.