Walter-titex 6618357 Jobber Drill Bit 0.303 in Solid Carbide

Product Description

The WALTER-TITEX 6618357 is a solid carbide jobber length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built on the DC150 series platform, it features a TiAlN coating that extends tool life under elevated cutting temperatures. The 140-degree split point promotes fast, accurate penetration with reduced thrust. At 3.583 inches overall length with a 1.515-inch flute length, this bit handles blind hole and stack drilling operations with a 5xD flute-to-diameter ratio. A whistle notch shank with a 0.315-inch shank diameter provides positive retention in compatible chucks and tool holders.

This drill bit is engineered for use on cast iron, non-ferrous metals, steel, superalloys, and titanium. It is well suited for CNC machining centers, drill presses, and production setups where consistent hole quality and tool longevity are priorities. The coolant-through design delivers cutting fluid directly to the cutting edge, making it effective in deep-hole and stack-drilling scenarios where heat buildup is a concern. It conforms to ANSI and ISO standards and carries an ISO specification designation with a diameter tolerance of m7.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and non-ferrous materials
• TiAlN coating improves heat resistance and extends tool life at high cutting speeds
• 140-degree proprietary point geometry reduces thrust and improves hole entry accuracy
• Coolant-through capability directs fluid to the cutting zone for blind hole and stack drilling
• Whistle notch shank provides positive angular and axial retention in compatible holders
• Meets ANSI and ISO standards with m7 diameter tolerance for consistent fit

Compatibility

Designed for use with cast iron, non-ferrous metals, steel, superalloys, and titanium workpieces. Fits tool holders and chucks accepting a 0.315-inch (8.00 mm) whistle notch shank. Part of the WALTER-TITEX DC150 series.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with CNC or manual drill press setups. Confirm the tool holder is rated for the shank diameter and that the whistle notch flat is properly engaged before securing. Verify coolant-through passages are clear and supply pressure is appropriate for the material and depth before beginning production drilling. Do not exceed the manufacturer-rated maximum drilling depth of 1.515 inches for this tool.