Sumitomo 5VHY504 Screw Machine Drill Bit 18mm Carbide

Product Description

The SUMITOMO 5VHY504 is a solid carbide screw machine length drill bit designed for high-performance drilling in tough workpiece materials including cast iron, stainless steel, and steel. Built to the MDW-HGS series standard, it features an 18.00 mm (0.7087 inches) diameter with a 135-degree split point for accurate self-centering entry and reduced thrust. Coolant-through design delivers cutting fluid directly to the cutting zone, extending tool life and supporting higher feed rates in production environments. This bit is sized and specified for CNC machining centers, drill presses, and automated tooling setups where consistency and tool life are critical.

This drill bit suits production machining applications in metalworking shops, job shops, and manufacturing environments handling ferrous and stainless workpieces. Its screw machine length body keeps overhang short for improved rigidity in close-tolerance boring and drilling operations. The 3xD flute-to-diameter ratio and tapered web configuration support efficient chip evacuation in deep-hole drilling up to 2.626 inches (66.70 mm). Machinists and toolroom technicians working with automated or manual setups in steel fabrication and precision machining will find this bit suited to repetitive, high-volume drilling cycles.

Key Features

• Solid carbide construction for hardness and heat resistance in ferrous metal drilling
• 135-degree drill point angle for self-centering entry and reduced walking on hard materials
• Coolant-through channels direct fluid to the cutting edge for extended tool life
• Straight-cylindrical shank for compatibility with standard drill chucks and collets
• Tapered web and 2-flute geometry promote efficient chip evacuation
• h8 diameter tolerance ensures consistent fit in precision toolholding systems

Compatibility

Designed as an OEM-style screw machine length drill bit for use in CNC machining centers and conventional drill presses accepting straight-cylindrical shank tooling in the 18.00 mm diameter range, with primary workpiece compatibility for cast iron, stainless steel, and steel as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with carbide tooling handling procedures. Ensure the machine spindle is fully stopped and locked out before changing tooling. Solid carbide bits are brittle and should not be subjected to side loads or dropped on hard surfaces. Verify coolant-through passages are clear and that the machine coolant system is operational before running this bit at rated feed and speed parameters.