Guhring 9007300056000 Stub Drill Bit 0.2205 in Carbide

Product Description

The GUHRING 9007300056000 is a stub-length (screw machine length) solid carbide drill bit designed for precise, high-efficiency drilling in metalworking and machining applications. Measuring 0.2205 inches (5.60 mm) in diameter with a 118-degree faceted point angle, this two-flute bit features a right-hand spiral flute and a straight-cylindrical shank. Built to DIN 6539 standards from micrograin solid carbide, it delivers consistent hole quality and extended tool life compared to high-speed steel alternatives. The bright, uncoated finish is suitable for general-purpose use and compatible with standard cutting fluids. Machinists and tool-and-die technicians specify this series for short-hole work where rigidity and positional accuracy matter.

This drill bit is engineered for general-purpose drilling with a primary focus on aluminum workpieces, though its micrograin carbide construction handles a range of non-ferrous and ferrous materials. The stub-length body limits overhang and maximizes stiffness, making it well-suited for CNC machining centers, drill presses, and turret lathes where chatter and deflection must be minimized. The Series 730 design follows DIN 6539 geometry, a standard specification in precision manufacturing and toolroom environments. Flute length is 28.00 mm, and the maximum drilling depth reaches 0.7720 inches (19.60 mm), consistent with the 3xD flute-by-diameter ratio of this stub-length format.

Key Features

• Micrograin solid carbide construction for wear resistance and edge retention
• 118-degree faceted point with web-thinned geometry for improved center starting and reduced thrust
• Two-flute right-hand spiral design promotes efficient chip evacuation
• Stub-length (screw machine length) body maximizes rigidity and reduces deflection
• Straight-cylindrical shank fits standard drill chucks and collets without modification
• Manufactured to DIN 6539 standard with h8 diameter tolerance for consistent fitment

Compatibility

Designed as an OEM-specification stub-length carbide drill bit conforming to DIN 6539, compatible with standard straight-shank drill chucks and collets accepting a 5.60 mm shank diameter.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the shank fully in a collet or drill chuck, verifying runout before operation. Power down and lock out the machine before changing tooling per standard machine-shop safety practice. Do not exceed the recommended maximum drilling depth of 0.7720 inches per pass without retracting to clear chips.