Sandvik Coromant 6151092 Extra Length Drill Bit 0.3438 in

Product Description

The SANDVIK COROMANT 6151092 is a solid carbide extra length drill bit from the CoroDrill 861 series, designed for high-performance drilling in steel and stainless steel. It measures 0.3438 inches in diameter with a 7.5591-inch overall length and a 5.748-inch flute length, making it well suited for reaching depths that standard-length drills cannot. The 140-degree point angle promotes accurate entry and reduces thrust force on entry. A TiAlN coating protects the cutting edge at elevated temperatures, extending tool life in demanding applications. Through-coolant capability supports chip evacuation and thermal management at depth.

This drill bit is intended for production and job-shop environments where deep-hole drilling in steel and stainless steel is routine. The 12xD flute-to-diameter ratio allows maximum drilling depths up to 4.1339 inches in a single pass without peck cycling in optimal conditions. The straight-cylindrical shank at 0.3937 inches diameter fits standard drill chucks and collet holders used on CNC machining centers, drill presses, and similar machine tool setups. Right-hand cutting direction is standard for conventional spindle rotation.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• TiAlN coating for high-temperature performance and extended tool life
• Through-coolant design aids chip evacuation and reduces heat buildup at depth
• 140-degree standard point angle for accurate positioning and reduced thrust
• 12xD flute-to-diameter ratio supports drilling up to 4.1339 inches deep
• Spiral flute with right-hand cut for use in conventional CNC and manual setups

Compatibility

Designed for drilling operations in steel (ISO material code P) and stainless steel (ISO material code M). The straight-cylindrical shank at 0.3937 inches diameter is compatible with standard drill chucks and collet systems sized for 10 mm shanks. Conforms to ANSI and ISO specification designations per SANDVIK COROMANT standards.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with CNC or manual machine tool setups. Ensure the spindle is fully stopped and the machine is in a safe state before loading or removing the tool from the holder. Verify coolant supply lines are open and delivering adequate flow before starting through-coolant drilling cycles. Follow machine tool manufacturer feed and speed recommendations for solid carbide drills in the workpiece material being cut.