Guhring 9007300061500 Carbide Stub Drill Bit 0.2421 in

Product Description

The GUHRING 9007300061500 is a solid carbide stub-length (screw machine length) drill bit designed for precise, high-speed drilling in production and machining environments. Built to DIN 6539 standards with a micrograin carbide grade, it delivers consistent performance in general-purpose applications. The bit features a 118-degree faceted point angle with web thinning for easier penetration and reduced thrust. At 0.2421 inches (Letter C) in diameter, it is sized for tight-tolerance work with a h8 diameter tolerance rating. Machinist and tool-and-die professionals working with CNC equipment and screw machines rely on this series for repeatable accuracy.

This drill bit is suited for drilling aluminum and similar non-ferrous materials in light manufacturing and job-shop settings. Its stub-length body provides added rigidity compared to jobber-length bits, reducing deflection in short, controlled drilling cycles. The straight-cylindrical shank fits standard drill chucks and collet systems without modification. With a 3xD flute-to-diameter ratio and a maximum drilling depth of 0.857 inches, it is well matched for shallow-to-moderate depth holes in production runs or precision fixturing work.

Key Features

• Solid micrograin carbide construction for wear resistance and dimensional stability
• 118-degree faceted point with web thinning for reduced entry thrust
• DIN 6539 compliant, Series 730 designation for consistent manufacturing tolerances
• h8 shank diameter tolerance for accurate chuck and collet seating
• Bright/uncoated finish suitable for aluminum and general-purpose non-ferrous drilling
• Stub-length body increases rigidity and minimizes bit deflection

Compatibility

Designed as a general-purpose stub-length carbide drill bit for use in CNC machining centers, screw machines, and manual drill presses equipped with standard straight-shank chucks or collet holders accepting a 6.15 mm shank diameter.

Installation Notes

Installation should be performed by a qualified machinist familiar with carbide tooling. Secure the straight-cylindrical shank firmly in a compatible chuck or collet before operation and verify runout before beginning a drilling cycle. Carbide tooling is brittle and susceptible to breakage from side loading or interrupted cuts — avoid lateral forces during drilling. Power down or e-stop the spindle fully before changing or inspecting the bit.