Kyocera OTM86120 Indexable Chamfer End Mill 1 in

Product Description

The KYOCERA OTM86120 is an indexable chamfer end mill designed for precision chamfering and facing operations on metalworking machining centers and milling machines. It features a 1 inch cutting diameter with a 10 degree lead angle, accepting XPMT 15T3.. style inserts secured by screw clamping. The tool holds 2 inserts and delivers a maximum depth of cut of 0.577 inches. With an overall length of 3.15 inches and a 0.75 inch whistle notch shank, this right-hand cutting tool is built for stable, repeatable performance in production environments. It is installed and set up by machinists and toolroom technicians.

The OTM86120 is suited for chamfering and facing applications on ferrous and non-ferrous workpieces in CNC milling setups. The CM series toolholder style and whistle notch shank make it compatible with standard milling machine spindles. Its 1.25 inch head length and 0.103 inch width support controlled material removal at the specified lead angle. This tool is a fit for job shops, production machining facilities, and maintenance toolrooms requiring consistent chamfer geometry on machined parts.

Key Features

• 1 inch cutting diameter with 10 degree lead angle for precise chamfer geometry
• Accepts XPMT 15T3.. insert style with screw holding method for secure insert retention
• 2-insert cutter body in the CM series toolholder configuration
• Whistle notch shank at 0.75 inches diameter for positive drive and pull-out resistance
• Right-hand cutting direction with a maximum depth of cut of 0.577 inches
• No coolant-through design; external coolant application is standard practice

Compatibility

Compatible insert size codes include XPMT 15T304, XPMT 15T308, XPMT 15T316, XPMT 15T324, XPMT 15T331, and XPMT 15T364. Designed for use with CM series toolholders with a 0.75 inch whistle notch shank interface.

Installation Notes

This tool is installed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before mounting or changing inserts. Torque the insert clamping screws using the appropriate Torx or hex key as specified by the insert manufacturer for the XPMT 15T3.. insert series. Confirm shank seating in the whistle notch holder before initiating a cut, and verify lead angle orientation matches the programmed toolpath before production runs.