Guhring 9068730063500 Corner Chamfer End Mill Solid Carbide

Product Description

The GUHRING 9068730063500 is a solid carbide corner chamfer end mill designed for demanding metal removal applications in production and tool room environments. This single-end mill measures 0.25 inches in diameter with a 0.5-inch length of cut and a 2.5-inch overall length. It features a 45-degree chamfer angle and a 0.004-inch chamfer width applied at the corner, protecting the cutting edge and producing a consistent chamfer on workpiece edges in a single pass. The TiAlSiN nano-Si PVD coating provides thermal resistance and wear protection suited to high-speed cutting in ferrous and exotic materials. A variable helix design reduces harmonics and chatter during aggressive cuts.

This end mill is intended for use on CNC machining centers and manual mills where precision edge preparation is required. Primary workpiece materials include steel, stainless steel, cast iron, and superalloys and titanium. Secondary suitability covers non-ferrous metals. Supported operations include shouldering, slotting, ramp-down entry, helical interpolation, drill milling, plunging, and recessing. The centercutting geometry allows direct plunge entry, and the coolant-through design supports both external and internal coolant delivery for chip evacuation and thermal management in deep-reach scenarios. The 0.875-inch reach length and 0.238-inch neck diameter provide clearance in pocketing and stepped-bore applications.

Key Features

• 45-degree corner chamfer with 0.004-inch chamfer width for consistent edge preparation
• TiAlSiN nano-Si PVD coating for thermal and wear resistance in steel, stainless, cast iron, superalloys, and titanium
• Variable helix geometry reduces chatter and improves surface finish during roughing and finishing passes
• Centercutting design supports direct plunge entry and helical interpolation
• Coolant-through construction aids chip evacuation and heat control in deep-reach cuts
• Micrograin solid carbide substrate maintains edge integrity at elevated cutting temperatures

Compatibility

Designed for use with standard 0.25-inch straight-cylindrical shank toolholders including ER collet chucks, shrink-fit holders, and hydraulic chucks. Primary workpiece materials are steel, stainless steel, cast iron, and superalloys and titanium; secondary material is non-ferrous metal.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is at a full stop and the control is in an estop or locked-out state before loading or removing the tool. Verify holder bore and collet size match the 0.25-inch shank diameter before seating the tool; shank diameter tolerance is h6. Confirm runout is within acceptable limits after clamping to protect both the tool and workpiece surface finish.