Iscar 3101876 Square Shoulder End Mill 1 in 2 Flute

Product Description

The ISCAR 3101876 is a two-flute indexable square-shoulder end mill in the Heli2000 series, designed for high-accuracy shoulder and face milling operations on machining centers and manual mills. The toolholder uses a 90-degree lead angle to produce true 90-degree walls without secondary finishing passes. It accepts AD..1505.. and HM90 AD..1505 insert styles, secured with a screw-clamp holding method for repeatable indexing. The 1-inch cutting diameter, 0.56-inch maximum depth of cut, and 1-inch Weldon flat shank make this a common choice for shops running steel, cast iron, and aluminum in production environments. Catalog designation is HM90 E90AD-D1.0-2-W1.00.

This end mill is suited for face milling, shoulder milling, and step milling in both roughing and semi-finishing applications. The Weldon flat shank provides positive drive engagement in side-lock holders, minimizing pullout under interrupted cuts or high feed rates. With an 11.5-degree maximum ramping angle, it can also be used for Z-axis ramp entry into pockets without a pre-drilled start hole. It is installed by machinists and tool-and-die professionals in job shops, aerospace, and general manufacturing environments requiring tight shoulder squareness tolerances.

Key Features

• 90-degree lead angle produces true square shoulders in a single pass
• Accepts AD..1505.. and HM90 AD..1505 indexable inserts, secured by screw clamp
• Weldon flat shank for positive side-lock drive engagement
• 11.5-degree maximum ramping angle enables ramp-in pocket entry
• Two-insert, two-flute configuration for balanced cutting forces
• Certified to AS 9100, ISO 9001:2008, and ISO 14001:2004 quality and environmental standards

Compatibility

Designed for use with AD..1505.. and HM90 AD..1505 insert styles in the HM90 E90AD-15 toolholder platform within the ISCAR Heli2000 series.

Installation Notes

Installation requires a side-lock or Weldon-style end mill holder; confirm bore diameter matches the 1-inch shank before mounting. De-energize and lock out the machine spindle before changing toolholders or indexing inserts. Use calibrated torque tooling for insert screw tightening per the insert manufacturer specification sheet supplied with the inserts. Verify runout with a dial indicator after clamping to confirm seating before beginning cuts.