Sumitomo 5VHY197 Carbide Drill Bit 8.5 Mm Tialcr Tisi

Product Description

The SUMITOMO 5VHY197 is a solid carbide jobber length drill bit engineered for demanding metal cutting applications. It features a 135-degree split point, dual TiAlCr and TiSi coating layers, and an 8.5 mm cutting diameter with a 9.00 mm straight-cylindrical shank. The 5xD flute-to-diameter ratio and tapered web configuration promote chip evacuation and reduce axial thrust in deep-hole drilling. Coolant-through capability allows internal delivery of cutting fluid directly to the cutting zone, improving tool life and hole quality in difficult materials. Machinists and CNC operators working in production environments rely on this geometry for consistent, repeatable results across a range of ferrous workpiece materials.

The 5VHY197 is suited for drilling cast iron, stainless steel, and steel in both manual and CNC machining setups. The MDW-HGS series designation reflects a high-performance geometry intended for stable, high-feed drilling in production shop environments. With an overall length of 127.00 mm and a flute length of 68.00 mm, the bit provides adequate reach for standard through-hole and blind-hole operations in typical fixture depths. The straight-cylindrical shank fits standard drill chucks and collet-style toolholders without modification.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• Dual TiAlCr and TiSi coating for elevated heat resistance and extended tool life
• 135-degree split point reduces walking and decreases thrust force at entry
• Coolant-through design delivers cutting fluid directly to the cutting edge
• Tapered web configuration supports chip flow and reduces recutting
• 5xD flute-by-diameter ratio suited to deeper drilling relative to diameter

Compatibility

Designed for use with cast iron, stainless steel, and steel workpieces. Compatible with standard drill chucks and collet toolholders accepting a 9.00 mm straight-cylindrical shank. Suitable for machines equipped with coolant-through spindle capability to take full advantage of the internal coolant feature.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists familiar with CNC or manual drilling operations. Confirm spindle speed, feed rate, and coolant pressure are appropriate for the workpiece material and machine configuration before engaging the cut. Secure the shank fully in the toolholder and verify runout before production use. Always power down and lock out the machine before changing tooling.