Sumitomo 5VHY116 Screw Machine Drill Bit 14mm Carbide

Product Description

The SUMITOMO 5VHY116 is a screw machine length drill bit designed for high-performance drilling in demanding metalworking applications. Built from solid carbide with a coated finish, it measures 14.00 mm (0.5512 inches) in diameter and delivers a 135-degree drill point angle for precise, self-centering entry. The bit features an overall length of 5.2756 inches with a flute length of 2.7559 inches, making it a compact, rigid option suited for short-hole drilling where stability and chip evacuation are critical. A coolant-through design channels fluid directly to the cutting zone, extending tool life and improving performance in difficult materials. Machining professionals and toolroom technicians rely on this bit for production drilling in ferrous and stainless applications.

The 5VHY116 is built for drilling cast iron, stainless steel, and steel in CNC machining centers and production drilling operations. Its screw machine length profile reduces deflection compared to jobber-length bits, making it well suited for tight-tolerance bores in part features with limited clearance. The MDW-HGS series designation reflects a geometry optimized for hole quality and feed rates in these primary workpiece materials. The straight-cylindrical shank with h8 diameter tolerance ensures consistent, repeatable seating in standard toolholders and collet chucks.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• Coolant-through channels deliver cutting fluid directly to the drill tip for thermal management and chip flushing
• 135-degree split-point geometry reduces thrust force and enables accurate hole entry without center-punching
• Tapered web configuration with 2 margins supports hole straightness and surface finish
• Screw machine length (3xD flute-to-diameter ratio) minimizes deflection for tight-tolerance drilling
• h8 shank diameter tolerance for precise fit in standard collet and hydraulic toolholders

Compatibility

Designed for use in CNC machining centers and drill presses with toolholding systems that accept a 14.00 mm straight-cylindrical shank. Primary workpiece materials are cast iron, stainless steel, and steel. Part of the Sumitomo MDW-HGS series.

Installation Notes

This bit should be installed by a qualified machinist or toolroom professional following the machine tool manufacturer's toolholder torque and runout specifications. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Verify coolant-through passages are clear and that the machine's coolant supply pressure is compatible with the bit before initiating a cycle. Confirm shank seating depth and runout with a dial indicator before production drilling.