Walter-titex 6618090 Screw Machine Drill Bit Solid Carbide

Product Description

The WALTER-TITEX 6618090 is a solid carbide screw machine length drill bit engineered for precision drilling in ferrous materials. Built to Series DC150-03-A0 standards, this right-hand cut bit features a 140-degree point angle and a three-flute spiral configuration that promotes chip evacuation and reduces cutting forces in demanding applications. The bit measures 0.217 inches (5.50 mm) in diameter with an overall length of 3.0 inches, making it well suited for compact drilling operations where stub-length rigidity is required. Machinists, tool-and-die professionals, and CNC operators working with tight tolerances rely on this geometry for consistent, repeatable hole quality.

This drill bit is designed for use in cast iron and steel workpieces, covering a broad range of production and maintenance machining tasks. The straight-cylindrical shank ensures secure seating in standard drill chucks and collet systems. With a flute-by-diameter ratio of 3xD and a maximum drilling depth of 0.651 inches, this bit is optimized for short, controlled bores rather than deep-hole applications. It carries a universal tool performance rating, making it a practical choice across general-purpose shop environments as well as dedicated production setups.

Key Features

• Solid carbide construction for hardness and wear resistance in ferrous materials
• Three-flute spiral design promotes efficient chip removal and reduces heat buildup
• 140-degree point angle provides aggressive cutting action and reduced thrust in cast iron and steel
• Screw machine length body delivers rigidity and minimizes deflection in short-bore applications
• Straight-cylindrical shank with m7 diameter tolerance for precise chuck and collet fitment
• Conforms to DIN and ISO standards for dimensional consistency

Compatibility

Designed as a Series DC150-03-A0 screw machine length drill bit suitable for use in cast iron and steel workpieces. Compatible with standard drill chucks and collet systems accepting a straight-cylindrical shank in the 0.200 to 0.250 inch diameter range.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or CNC operators familiar with carbide tooling. Ensure the spindle is fully stopped and the machine is locked out before changing or inspecting the bit. Carbide tooling is brittle and should not be dropped or subjected to side impact. Verify chuck or collet runout is within tolerance before use to avoid premature edge chipping or bit failure.