Walter-titex 6618683 Carbide Jobber Drill 8.50 Mm Tinal

Product Description

The WALTER-TITEX 6618683 is a solid carbide jobber-length twist drill designed for high-performance drilling in demanding industrial and machining applications. Built to Series DC150-08-A1 standards, it features an 8.50 mm cutting diameter, a 140-degree split point for reduced thrust and self-centering entry, and a TiNAl (titanium aluminum nitride) coating that extends tool life at elevated cutting temperatures. The straight-cylindrical shank measures 10.00 mm in diameter, and the overall length is 139.00 mm. Right-hand cutting geometry and coolant-through capability make this drill well suited for production environments where chip evacuation and heat management are critical. Grade WJ30TA carbide substrate supports consistent performance across a broad range of workpiece materials.

This drill is rated for use in cast iron, non-ferrous metals, steel, superalloys, and titanium. It is appropriate for both blind hole and stack drilling operations. The 8xD flute-to-diameter ratio provides a maximum drilling depth of 80.00 mm, making it a practical choice for deep-hole work within jobber-length reach. It is intended for use by machinists and CNC operators in job shops, aerospace, automotive, and general metalworking environments where tight tolerances and repeatable hole quality are required. Drill bit diameter tolerance is rated at m7, confirming precision-ground consistency across the cutting edge.

Key Features

• Solid carbide construction in grade WJ30TA for rigidity and heat resistance
• TiNAl coating for extended tool life in high-temperature cutting conditions
• 140-degree point angle reduces entry thrust and improves self-centering performance
• Coolant-through design aids chip evacuation and thermal management in deep holes
• 8xD flute ratio supports drilling depths up to 80.00 mm
• Straight-cylindrical shank compatible with standard ER collet chucks and drill chucks
• Rated for blind hole and stack drilling applications

Compatibility

Designed for use in CNC machining centers and drill presses equipped with standard straight-bore toolholders or collet chucks accepting a 10.00 mm shank diameter. Suitable for workpiece materials coded K (cast iron), N (non-ferrous), P (steel), and S (superalloys and titanium) per ISO material classification. Conforms to ANSI and ISO standards.

Installation Notes

Installation and operation should be performed by qualified machinists or CNC technicians familiar with rotating cutting tools and machine tool safety procedures. Ensure the machine spindle is fully stopped and locked out before mounting or removing the drill from the toolholder. Verify that the shank is fully seated and the collet or chuck is torqued to the toolholder manufacturer's specification before initiating a cut. Coolant-through capability requires a compatible spindle coolant system; confirm coolant pressure and flow rate against machine and toolholder specifications before use.