Kyocera OTM86128 Indexable Chamfer End Mill 1 in

Product Description

The KYOCERA OTM86128 is an indexable chamfer end mill designed for facing and chamfering operations on milling machines. It accepts XPMT 15T3.. series inserts and holds two inserts simultaneously via screw clamp, providing a stable cutting platform for right-hand cutting. The tool features a 1 inch cutting diameter, a 35-degree lead angle, and a maximum depth of cut of 0.472 inches. With an overall length of 3.15 inches and a 0.75 inch whistle notch shank, it mounts directly into compatible CM-series toolholders. Machinists and toolroom operators use this end mill for chamfering edges and facing flat surfaces on ferrous and non-ferrous workpieces.

This end mill is suited for facing applications in production and job-shop environments. The CM series designation matches it to KYOCERA CM-series toolholder systems. The whistle notch shank design provides positive axial retention in the toolholder, which is especially useful in interrupted cuts or high-feed facing passes. Compatible insert sizes include XPMT 15T304, XPMT 15T308, XPMT 15T316, XPMT 15T324, XPMT 15T331, and XPMT 15T364, giving operators flexibility to match insert grade and geometry to the workpiece material.

Key Features

• 35-degree lead angle for controlled chip formation during chamfering and facing
• Accepts 2 XPMT 15T3.. series inserts secured by screw clamp
• 1 inch cutting diameter with 0.472 inch maximum depth of cut
• Whistle notch shank for positive axial retention in the toolholder
• Right-hand cutting direction; coolant-through is not available on this tool
• CM series toolholder compatibility for broad system integration

Compatibility

Compatible insert sizes: XPMT 15T304, XPMT 15T308, XPMT 15T316, XPMT 15T324, XPMT 15T331, and XPMT 15T364. Designed for use with CM-series toolholders. Shank diameter is 0.75 inches (19.05 mm).

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer torque and runout specifications for the toolholder. Power down and lock out the spindle before changing inserts or mounting the tool. Verify shank seating in the whistle notch holder before applying clamping force, and confirm insert seating and screw torque before resuming cuts. Follow the insert manufacturer recommendations for speed, feed, and depth of cut based on insert grade and workpiece material.