Kennametal 4151136 Screw Machine Drill Bit Size 7 Carbide

Product Description

The KENNAMETAL 4151136 is a screw machine length drill bit designed for high-performance drilling in metalworking and machining applications. Built from solid carbide and coated with TiN at the tip, this bit delivers extended tool life and reduced friction at the cutting edge. It carries a wire gauge size of 7, equivalent to 0.2010 inches in decimal, and features a 140-degree split point angle for accurate self-starting on entry. With a 2-flute regular spiral configuration and coolant-through capability, it supports higher feed rates and effective chip evacuation in production environments. Licensed machinists and CNC operators are the primary installers and users of this tool.

This drill bit is suited for short-hole drilling operations in ferrous and non-ferrous metals where a compact, stub-length tool is required. The screw machine length profile offers greater rigidity than jobber-length bits, making it well suited for drill press, CNC machining center, and turret lathe applications. The coolant-through design supports internal coolant delivery for deep-feature work within its maximum drilling depth of 20.00 mm. The straight cylindrical shank, measuring 6.00 mm in diameter, seats directly into standard collets and drill chucks without adapters.

Key Features

• Solid carbide construction with TiN tip coating for extended cutting life
• 140-degree point angle for fast, accurate entry with minimal walking
• Coolant-through design supports internal coolant delivery during drilling
• 2-flute regular spiral geometry promotes efficient chip evacuation
• Screw machine (stub) length provides added rigidity versus jobber-length bits
• Straight cylindrical shank fits standard collets and drill chucks directly

Compatibility

Designed as an OEM-style screw machine length drill bit in Series B051CPG, compatible with standard straight-shank tool holders, collets, and drill chucks accepting a 6.00 mm shank diameter.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine fully powered down and at a complete stop before removing or seating the bit. Secure the shank firmly in the collet or chuck to the manufacturer-specified clamping depth before operation. Verify coolant-through passages are clear before enabling internal coolant flow. Handle solid carbide tooling carefully to avoid chipping the cutting edges during storage and setup.