Sumitomo 5V00023 Screw Machine Drill Bit 0.185 in Carbide

Product Description

The SUMITOMO 5V00023 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous and hard-to-machine materials. It carries a 0.185 inch (4.70 mm) diameter, a 135-degree split point angle, and a coated finish that extends tool life under demanding conditions. The straight-cylindrical shank seats securely in standard chucks, and the tapered web configuration improves chip evacuation and centering accuracy. Coolant-through construction allows cutting fluid delivery directly to the tip, making it well-suited for production environments where heat buildup and chip control are critical concerns. Installation and use are within the scope of machinists and tooling technicians working on CNC or manual drilling equipment.

This bit is intended for use on cast iron, stainless steel, and steel workpieces. The screw machine length format — shorter overall length for increased rigidity — makes it appropriate for close-tolerance hole applications on machining centers and drill presses where runout and deflection must be minimized. It belongs to the MDW-HGS series and covers the 0.1500 to 0.2000 inch diameter range, with this particular size at 0.185 inch. The 3xD flute-to-diameter ratio supports controlled chip flow in blind and through-hole operations on production lines and job shops alike.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• 135-degree drill point angle reduces walking and minimizes entry burrs
• Coolant-through design delivers cutting fluid directly to the cutting edge
• Coated finish extends tool life in cast iron, stainless steel, and steel applications
• Tapered web with 2-margin straight-cylindrical shank for accurate chip evacuation and chuck retention
• Screw machine length format increases rigidity compared to jobber length bits

Compatibility

Designed for use on cast iron, stainless steel, and steel workpieces. Part of the SUMITOMO MDW-HGS series covering drill bit diameters from 0.1500 to 0.2000 inch (3.50 to 5.00 mm). Compatible with standard straight-cylindrical shank toolholders and chucks on CNC machining centers and conventional drill presses.

Installation Notes

Installation and operation should be performed by qualified machinists or tooling technicians familiar with carbide tooling requirements. Power down and de-energize the machine spindle completely before inserting or removing the bit. Ensure the chuck or collet bore is clean and within the appropriate tolerance range for the 0.197 inch (5.00 mm) shank diameter before tightening. Avoid impact loading or side pressure on the carbide shank, as solid carbide is brittle and susceptible to chipping under lateral force.