Guhring 9024630040900 Stub Drill Bit 0.161 in Carbide

Product Description

The GUHRING 9024630040900 is a stub-length (screw machine length) solid carbide drill bit designed for precision drilling in production and machining environments. Built to DIN 6539 standards, this bit features a 118-degree faceted point angle and a web-thinned tip geometry that reduces thrust and improves hole entry accuracy. With a 0.161-inch (No. 20 wire gauge) diameter and a straight-cylindrical shank measuring 4.09 millimeters, it fits standard drill chucks and collets used in CNC machining centers, drill presses, and handheld power tools. Licensed machinists, tool-and-die technicians, and production shop operators are the primary users of this bit.

This drill bit is rated for general-purpose use with a primary workpiece material designation of aluminum, making it well suited for high-speed drilling in aluminum stock, plate, and extrusions common in aerospace, automotive, and light manufacturing applications. The stub-length body provides increased rigidity compared to jobber-length bits, which reduces deflection in tight-tolerance drilling operations. The 3xD flute-to-diameter ratio and regular spiral flute design support efficient chip evacuation at moderate feed rates.

Key Features

• Solid carbide construction rated to K40 material grade for wear resistance in non-ferrous materials
• 118-degree faceted point with web thinning for reduced entry thrust and improved centering
• Stub-length body (2.165 inches overall) provides added rigidity to minimize deflection
• Right-hand cut, regular spiral flute for reliable chip evacuation
• Straight-cylindrical shank compatible with standard drill chucks and collets
• Meets DIN 6539 specification — consistent dimensional tolerances across production runs

Compatibility

Designed as a general-purpose stub-length carbide drill bit for use in CNC machining centers, turret lathes, and drill presses capable of accepting a straight-cylindrical shank. Primary workpiece material is aluminum; suitable for other non-ferrous materials consistent with K40 carbide grade applications.

Installation Notes

Installation and tool changes should be performed with the machine fully powered down and the spindle locked. Ensure the shank is fully seated and the chuck or collet is torqued to the toolholder manufacturer's specification before operation. Verify spindle speed and feed rate are appropriate for the workpiece material and bit diameter before running. Coolant-through is not supported on this bit; use external coolant or mist lubrication as required by shop practice.