Sumitomo 5KHYW1N Replaceable Drill Tip 0.5156 in Carbide

Product Description

The SUMITOMO 5KHYW1N is a replaceable drill tip designed for use with modular drill systems in the SMD series. It features a solid carbide construction with a 0.5156-inch cutting diameter and a drill point angle of 178 degrees, producing a near-flat entry profile suited for precise hole initiation. The ACX70 manufacturer grade includes a multi-layer DEX, TiAlCr, and TiSi coating system that extends tool life across a broad range of workpiece materials. Coolant-through capability is built in, supporting effective chip evacuation and heat control at the cutting edge. This tip is sold individually and is installed by machinists and toolroom technicians working in production or job-shop environments.

The 5KHYW1N is rated for primary workpiece material codes P, K, M, H, and N, covering steel, cast iron, stainless steel, hardened materials, and non-ferrous metals. Its 2-flute geometry and screw-retention mounting method make it a practical choice for CNC machining centers and drill presses where repeatable tip indexing is required. The 0.2953-inch height and overall projection keep the tool profile compact within the modular holder system. It is well suited for high-volume drilling operations where tip replacement frequency and consistency of hole quality are priorities.

Key Features

• Solid carbide construction for rigidity and wear resistance across multiple material groups
• ACX70 grade with DEX, TiAlCr, and TiSi multi-layer coating for extended tool life
• Coolant-through design supports chip evacuation and thermal management at depth
• 178-degree drill point angle delivers a near-flat cutting profile for accurate hole entry
• Screw-retention insert holding method ensures repeatable seating in the modular holder
• 2-flute geometry compatible with high-feed drilling in production environments

Compatibility

Designed for use with SUMITOMO SMD series modular drill holders that accept replaceable screw-retained carbide tips with a 0.5156-inch cutting diameter.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. The modular holder must be clean and free of chips or debris before seating the tip. Use the manufacturer-specified torque driver or key for the retention screw to ensure proper clamping without over-torquing. Verify coolant-through passages are clear and unobstructed before returning the assembly to service.