Guhring 9005520041500 Screw Machine Drill Bit 0.1634 in

Product Description

The GUHRING 9005520041500 is a stub-length, screw machine drill bit engineered for high-performance drilling in aluminum and similar non-ferrous materials. It measures 0.1634 inches (4.15 mm) in diameter with an overall length of 2.1654 inches (55.00 mm). The parabolic flute geometry promotes efficient chip evacuation, reducing heat buildup and chip packing during high-speed operations. The 130-degree split point provides a self-centering entry with reduced thrust requirements. Manufactured from high speed steel with a bright, uncoated finish, this bit is suited for machine shop and production drilling environments where tool life and hole quality are priorities. Installation is typically performed by machinists and tool and die professionals.

This drill bit is designed for stub-length applications where clearance is limited or where a stiffer, more rigid setup is needed to maintain hole accuracy. The 3xD flute-to-diameter ratio and web-thinned, parallel web construction make it well suited for high-cycle production drilling in aluminum workpieces. The straight cylindrical shank fits standard drill chucks and collet holders used in drill presses, CNC machining centers, and screw machines. Conforming to DIN 1897 standards, this bit is appropriate for both manual machine setups and automated production runs requiring repeatable, tight-tolerance results.

Key Features

• 0.1634 inch (4.15 mm) diameter with a diameter tolerance of +0.000 to -0.018 mm for consistent hole sizing
• Parabolic flute design promotes fast chip evacuation in aluminum and non-ferrous materials
• 130-degree standard point angle with web thinning reduces entry thrust and improves centering
• Stub length (DIN 1897) construction provides increased rigidity over jobber-length equivalents
• Bright, uncoated high speed steel finish suitable for use with cutting fluids or dry in appropriate applications
• Right-hand cut with straight cylindrical shank fits standard chucks and collets

Compatibility

Designed as a DIN 1897-compliant stub-length drill bit for use in drill presses, CNC machining centers, and screw machines equipped with standard straight-shank toolholders or drill chucks accommodating the 0.1634 inch diameter range.

Installation Notes

This bit is installed and changed by machinists or CNC operators following standard lockout and spindle-stop procedures before any tool change. Ensure the chuck or collet is clean and undamaged before seating the straight shank to maintain runout tolerance. Refer to machine manufacturer guidelines and applicable shop safety standards for correct spindle speed and feed rate settings when drilling aluminum. Do not use this bit beyond its maximum drilling depth of 0.6210 inches (15.78 mm) per pass without retracting for chip clearing.