Guhring 9005520027500 Stub Drill Bit 0.1083 in Hss

Product Description

The GUHRING 9005520027500 is a screw machine length (stub) drill bit designed for high-throughput metal and non-ferrous drilling operations. Built from high-speed steel (HSS) with a bright/uncoated finish, it measures 0.1083 inches (2.75 mm) in diameter and carries a 130-degree drill point angle optimized for aluminum and similar materials. The parabolic flute geometry improves chip evacuation in deeper holes, reducing heat buildup and minimizing feed pressure. Web-thinned construction lowers the thrust force needed at entry. This bit is a right-hand cut tool suited for use in drill presses, CNC screw machines, and hand-held pneumatic drills in production and job-shop environments.

This stub-length drill is particularly well suited for close-quarter drilling where a standard-length bit would overhang or flex. Its compact overall length of 1.811 inches keeps it rigid in short-reach setups. Primary workpiece material is aluminum, though the HSS construction handles a range of non-ferrous and mild ferrous materials. The Series 552 designation conforms to DIN 1897 standards, making it a recognized metric-spec tool for shops running European or dual-standard tooling inventories. Machinists, tool-and-die makers, and production floor technicians are the typical users.

Key Features

• Parabolic flute design promotes efficient chip clearing in stub-depth holes
• 130-degree split point reduces walking and lowers entry thrust on aluminum
• Web-thinned, parallel web configuration decreases cutting resistance
• Bright/uncoated HSS finish maintains sharpness across repeated resharpening cycles
• DIN 1897 compliant for use in metric-standard production environments
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as an OEM-style replacement or direct-use stub drill conforming to DIN 1897 specifications, compatible with standard straight-shank drill chucks sized for 0.1083-inch diameter tooling.

Installation Notes

Installation is performed by machinists or qualified toolroom personnel. Secure the straight-cylindrical shank fully into a properly sized drill chuck before operation and verify runout before committing to a production run. Power down the machine and lock out the spindle before changing or inspecting bits. Maximum drilling depth for this bit is 0.468 inches; exceeding rated depth without pecking cycles may cause chip packing and premature tool failure.