Robbjack ST-341-06-A Corner Chamfer End Mill 3/16 in

Product Description

The ROBBJACK ST-341-06-A is a solid carbide corner chamfer end mill designed for precision edge chamfering, slotting, side milling, helical interpolation, and ramping operations. Built on a 3-flute, single-end geometry with a 40-degree high helix angle, it delivers efficient chip evacuation and smooth cutting action in demanding materials. The cutting diameter is 0.1875 inches with a 3/8-inch length of cut and a 45-degree chamfer angle producing a chamfer width of 0.0030 to 0.0050 inches. An AlTiN PVD coating provides heat and wear resistance suited for high-speed machining. This tool is intended for use by machinists and CNC operators working in production or job-shop environments.

The ST-341-06-A is engineered for machining steel, stainless steel, cast iron, superalloys, and titanium. Its stub-length configuration and straight-cylindrical shank make it well suited for tight-clearance work where rigidity is critical. The right-hand flute direction and right-hand cutting orientation are standard for conventional CNC milling center spindles. Typical applications include finishing and roughing passes on ferrous and exotic alloy components where consistent chamfer geometry and edge quality are required.

Key Features

• Solid carbide construction for maximum rigidity and wear resistance in hard and abrasive workpiece materials
• AlTiN PVD coating extends tool life in steel, stainless steel, cast iron, superalloys, and titanium
• 45-degree chamfer angle with 0.0030 to 0.0050 inch chamfer width for consistent edge preparation
• 40-degree high helix angle promotes efficient chip evacuation and reduces cutting forces
• 3-flute geometry balances feed rate capability with chip clearance on stub-length cuts
• Supports slotting, side milling, helical interpolation, and ramping in a single tool

Compatibility

Designed as an OEM-style replacement and standard fit within the ROBBJACK ST-341 series. Compatible with CNC machining centers and manual mills using a straight-cylindrical shank holder sized for a 3/16-inch shank diameter.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Secure the straight-cylindrical shank in a properly sized collet or end mill holder and torque to the machine spindle manufacturer's specification. Verify runout at the cutting diameter before engaging the workpiece. Confirm spindle rotation direction matches the right-hand cutting geometry of this tool before initiating a program cycle.