Guhring 9007300082000 Carbide Drill Bit 0.3228 in

Product Description

The GUHRING 9007300082000 is a solid carbide screw machine length drill bit sized at 0.3228 inches (Letter P) in diameter with a 118-degree faceted point angle. Built to DIN 6539 standards using micrograin carbide, it delivers consistent performance in high-speed drilling operations. The two-flute spiral design and web-thinned point reduce entry force and improve chip evacuation. With an overall length of approximately 3.11 inches and a flute length of approximately 1.46 inches, this stub-length bit fits standard drill chucks and machine spindles used by machinists and tool-room technicians.

This drill bit is rated for general-purpose drilling with aluminum listed as the primary workpiece material, though the micrograin carbide construction also suits other non-ferrous materials and plastics in production and job-shop environments. The straight-cylindrical shank at approximately 0.323 inches (8.20 mm) seats securely in standard chucks. It is well suited for CNC machining centers, drill presses, and screw machine setups where stub-length rigidity is required to maintain hole-location accuracy.

Key Features

• Solid micrograin carbide construction for wear resistance and edge retention
• 118-degree faceted point angle with web-thinned tip reduces thrust force on entry
• Two spiral flutes provide efficient chip clearance in aluminum and non-ferrous materials
• Stub (screw machine) length design maximizes rigidity and minimizes deflection
• Bright/uncoated finish suitable for use with cutting fluids or dry in non-ferrous applications
• Conforms to DIN 6539 specification with h8 diameter tolerance for precision fitment

Compatibility

Designed as a general-purpose stub-length drill bit conforming to DIN 6539, compatible with standard straight-shank drill chucks and collet systems accepting an 8.20 mm shank diameter. Fits CNC machining centers, drill presses, and screw machines requiring a 0.3228-inch (Letter P) diameter hole.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician familiar with carbide tooling. Secure the shank fully in a properly sized chuck or collet before operation and confirm runout is within acceptable limits, as carbide is brittle and sensitive to lateral loading. Power down and de-energize the machine spindle completely before changing tooling. Avoid intermittent or hand-fed drilling that can cause chipping on the carbide cutting edge.