Guhring 9007300076700 Stub Drill Bit 0.302in Carbide

Product Description

The GUHRING 9007300076700 is a stub-length (screw machine length) solid carbide drill bit sized at 0.302 inches (Letter N), designed for precision drilling in production and maintenance environments. Built to DIN 6539 standards, it features a 118-degree faceted point angle with web thinning for reduced thrust at entry. The two-flute, right-hand spiral design moves chips efficiently out of the cut. At 79 mm overall length with a 37 mm flute length, this bit fits standard drill chucks and CNC spindles. The micrograin carbide substrate delivers the rigidity needed when drilling aluminum and other non-ferrous materials at higher speeds than high-speed-steel tooling allows.

This drill bit is suited for stub-length drilling applications in CNC machining centers, knee mills, drill presses, and screw machine setups. Its straight cylindrical shank, ground to an h8 tolerance, seats cleanly in collet chucks and drill chucks alike. The 3xD flute-to-diameter ratio and maximum drilling depth of 1.004 inches make it appropriate for shallow-to-moderate-depth holes in aluminum, plastic, and similar soft-to-medium materials. It is typically selected for general-purpose production work where tool rigidity and hole location accuracy matter more than deep-reach capability.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• 118-degree faceted point with web thinning reduces entry thrust
• DIN 6539 standard geometry ensures consistent dimensional compliance
• Bright/uncoated finish suitable for aluminum and non-ferrous workpieces
• Straight cylindrical shank ground to h8 tolerance for accurate chuck seating
• Stub length design minimizes deflection in short-reach drilling applications

Compatibility

Designed as a general-purpose stub-length drill for use in standard drill chucks and collet systems accepting a 7.67 mm straight shank. Primary workpiece material rating is aluminum; suitable for general-purpose drilling within the 0.3000 to 0.3500 inch drill bit size range per DIN specification.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Secure the shank fully within the chuck or collet to the manufacturer-recommended engagement depth before operation. Ensure the machine spindle is at a full stop before inserting or removing the bit. Follow applicable shop safety standards and machine tool operating procedures when selecting speeds and feeds for the workpiece material.