Robbjack C1-201-03 Square End Mill 3/32 in 2 Flute Carbide

Product Description

The ROBBJACK C1-201-03 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. It features a 3/32-inch (0.0938-inch) cutting diameter, a 3/8-inch length of cut, and a 1/8-inch straight cylindrical shank, with an overall length of 1.5 inches. The 2-flute, right-hand spiral configuration with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. The centercutting design allows for plunge entry as well as standard peripheral milling. This tool is uncoated solid carbide at material grade C2, suited for shops running tight-tolerance work in ferrous and non-ferrous materials. Installation and use are performed by machinists on CNC mills and manual milling machines.

This end mill is well suited for slotting, profiling, and light plunge operations in small-feature workpieces where a compact diameter is required. The regular-length geometry and 3/8-inch length of cut make it appropriate for shallow pockets and fine detail work. The right-hand cut and right-hand flute orientation are standard for conventional and climb milling setups. Its small shank and cutter diameter make it a go-to choice for micro-milling tasks in tooling, die work, prototype machining, and precision component manufacturing.

Key Features

• Solid carbide construction at material grade C2 for rigidity and wear resistance
• 3/32-inch cutting diameter (0.0938 inches) with mill diameter tolerance of +0.000 / -0.002 inches
• 2-flute, right-hand spiral flute with 30-degree helix angle for efficient chip evacuation
• Centercutting geometry allows plunge cutting as well as peripheral milling
• 1/8-inch straight cylindrical shank with shank diameter tolerance of -0.0001 / -0.0002 inches
• Uncoated finish; no chipbreaker, no variable helix, no variable index - straightforward geometry for consistent performance

Compatibility

Part of the ROBBJACK C1-201 Series. Designed for use in standard 1/8-inch collets or milling chucks on CNC machining centers and manual knee mills capable of running small-diameter solid carbide tooling.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the machine spindle and collet are fully de-energized and at rest before changing tooling. Use a clean, properly sized collet or end mill holder sized for 1/8-inch shanks to maintain runout accuracy - excessive runout will accelerate tool wear and affect surface finish on a cutter of this diameter. At 3/32-inch diameter, feed rates and depths of cut should be conservative; consult the shop's speeds-and-feeds reference for small-diameter solid carbide tooling before first use.