Kennametal 2649364 Screw Machine Drill Bit 3/16 in Carbide

Product Description

The KENNAMETAL 2649364 is a screw machine length drill bit engineered for high-performance drilling in demanding metalworking applications. Built from solid carbide and coated with a multilayer TiAlN finish, this bit delivers extended tool life and heat resistance in production environments. It features a 3/16 inch (0.1875 inch) diameter, a 140-degree standard point angle with web thinning for reduced entry force, and a straight cylindrical shank with a 0.2362 inch shank diameter. The 2-flute regular spiral design promotes efficient chip evacuation. Coolant-through capability supports high-speed, high-feed drilling cycles. Licensed HVAC, plumbing, and mechanical trade professionals working with ferrous materials will find this bit suited to precise, repeatable hole generation in tight-tolerance assemblies.

The 2649364 is designed for drilling cast iron and steel workpieces in screw machine and CNC drilling operations. With an overall length of 2.5984 inches and a flute length of 1.1024 inches, it fits short-reach toolholding setups common in turret lathes, screw machines, and machining centers. Its maximum drilling depth of 0.787 inches suits stub-depth hole applications. The DIN 6537K specification governs its geometry, making it a recognized standard in production machining environments.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• Multilayer TiAlN coating provides thermal barrier and extended cutting life
• 140-degree point angle with web thinning reduces thrust and improves hole entry accuracy
• Coolant-through design supports high-speed drilling with internal chip and heat control
• Straight cylindrical shank at 0.2362 inches (6.00 mm) fits standard collet and drill chuck toolholding
• Conforms to DIN 6537K specification for consistent geometry and dimensional control

Compatibility

Designed for use in cast iron and steel workpieces. Fits standard collet chucks and drill holders accepting a 0.2362 inch (6.00 mm) straight shank. Part of the KENNAMETAL B976 series covering drill bit sizes from 0.1500 to 0.2000 inch diameter range.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with carbide tooling. Secure the shank fully in a collet or drill chuck rated for the spindle speed and feed rate being applied. Carbide tooling is brittle — avoid lateral loading, interrupted cuts without appropriate feed reduction, or re-chucking with debris in the holder. Activate coolant-through flow before engaging the cut to prevent thermal shock to the carbide substrate.