Sumitomo 5VHY017 Screw Machine Drill Bit 0.1614 in Carbide

Product Description

The SUMITOMO 5VHY017 is a screw machine length drill bit engineered for high-performance drilling in demanding metalworking applications. Built from solid carbide with a coated finish, it measures 0.1614 inches (4.10 mm) in diameter and delivers a 135-degree drill point angle for accurate, self-centering starts with minimal walking. The overall length is 3.1496 inches (80.00 mm), and the flute length measures 0.9843 inches (25.00 mm). The MDW-HGS series design incorporates a straight-cylindrical shank, a tapered web configuration, and coolant-through capability, making it well suited for production environments where heat management and chip evacuation are critical.

This drill bit is designed for use in ferrous metal applications, targeting cast iron, stainless steel, and steel workpieces. Its screw machine length profile makes it a practical choice for CNC machining centers, drill presses, and turret lathes where rigidity and repeatability matter. The 3xD flute-to-diameter ratio and two-margin geometry support consistent hole quality in short-run and high-volume production settings. Machinists and tooling specialists working in job shops, fabrication facilities, and production machining operations will find this bit appropriate for tight-tolerance applications.

Key Features

• Solid carbide construction with coated finish for extended tool life in hard ferrous materials
• 135-degree drill point angle for self-centering entry and reduced thrust force
• Coolant-through design supports internal coolant delivery to the cutting zone
• Tapered web with two-margin geometry promotes chip control and bore accuracy
• Straight-cylindrical shank with h8 diameter tolerance fits standard collets and drill chucks
• 3xD flute ratio with 0.7756-inch maximum drilling depth suitable for screw machine length applications

Compatibility

Designed for use in machining applications targeting cast iron, stainless steel, and carbon steel workpieces. Compatible with tool holders and collet chucks accepting a 5.00 mm (0.1969 inches) straight-cylindrical shank. Part of the SUMITOMO MDW-HGS series, covering the 3.50 to 5.00 mm drill bit size range.

Installation Notes

Installation and tool changes should be performed by a qualified machinist following the machine tool manufacturer guidelines for collet torque and runout tolerances. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit. Verify coolant-through lines are properly connected and purged before initiating a cut to protect the cutting edge. Inspect the shank and collet bore for contamination or wear before seating the tool.