Robbjack C1-301-16 Square End Mill 0.5 in 3 Flute Carbide

Product Description

The ROBBJACK C1-301-16 is a solid carbide square end mill designed for precision material removal in milling applications. With a 0.5-inch cutting diameter, a 1-inch length of cut, and a 3-inch overall length, this tool is built for rigidity and accuracy in tight tolerances. It features 3 spiral flutes with a right-hand cut and right-hand flute direction, a 30-degree helix angle, and centercutting capability that allows plunge entry. The straight cylindrical shank measures 0.5 inches in diameter and fits standard collet and end mill holder systems. This is an uncoated, regular-length tool in the C1-301 series, suited to shops running carbide-grade C2 material across a range of workpiece materials.

This end mill is suited to general-purpose milling operations in job shops, tool rooms, and production environments. The centercutting geometry supports slot milling, peripheral milling, and ramp entry operations. The 30-degree helix angle balances chip evacuation with cutting edge stability, making it a reliable choice for ferrous and non-ferrous materials where surface finish and dimensional accuracy are priorities. Licensed machinists and CNC operators working on vertical or horizontal machining centers will find this a standard workhorse tool for everyday milling work.

Key Features

• Solid carbide construction for rigidity and wear resistance in precision milling
• 3 spiral flutes with 30-degree helix angle for balanced chip evacuation and edge strength
• Centercutting design allows direct plunge entry into the workpiece
• Right-hand cut and right-hand flute direction for standard CNC and manual mill setups
• Straight cylindrical shank with tight shank diameter tolerance of -0.0001 to -0.0002 inches for secure holder fitment
• Uncoated finish for use across a broad range of materials without coating compatibility concerns

Compatibility

Designed as an OEM-style replacement and standard tooling option for 0.5-inch end mill holders, collets, and tooling systems accepting straight cylindrical shanks in vertical and horizontal machining center applications.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before loading or changing tooling. Use a properly sized collet or end mill holder and verify shank seating depth meets the tool manufacturer and holder manufacturer recommendations. Inspect the cutting edges and shank for damage before each use.