Guhring 9005020087300 Extra Length Drill Bit Hss

Product Description

The GUHRING 9005020087300 is a high-speed steel extra length drill bit engineered for deep hole drilling applications. Built to DIN 1869 standards, it features a 0.3438-inch diameter, a parabolic flute geometry, and a web-thinned, tapered web configuration that reduces cutting resistance and improves chip evacuation at depth. The 130-degree drill point angle suits a broad range of materials, with aluminum and similar non-ferrous and ferrous workpieces listed as primary applications. Licensed machinists, toolroom operators, and production floor technicians are the typical end users who spec and run this tool.

This bit is rated for deep hole drilling with a flute-to-diameter ratio of 15xD, making it appropriate for applications where standard-length drills cannot reach. The parabolic flute profile assists chip clearing in long-reach setups, reducing the need for peck cycles in many materials. It fits conventional drill chucks and collet systems sized for an 11/32-inch straight-cylindrical shank. The Series 502 designation identifies this as part of a purpose-built GUHRING deep-hole product family conforming to DIN 1869 geometry.

Key Features

• Parabolic flute geometry promotes efficient chip evacuation in deep hole drilling
• Web-thinned tapered web reduces thrust force at entry and through the cut
• 130-degree drill point angle suitable for aluminum and a wide range of workpiece materials
• DIN 1869 compliant extra length construction with 9.843-inch overall length
• Uncoated high-speed steel construction — regrindable and compatible with standard HSS sharpening equipment
• Right-hand cutting direction with two flutes and a straight-cylindrical shank for broad machine compatibility

Compatibility

Designed as a DIN 1869 Series 502 extra length drill bit for use in drill chucks and collet holders accepting an 11/32-inch straight-cylindrical shank; primary workpiece material designation is aluminum (material codes K, N, and P).

Installation Notes

Installation and operation should be performed by qualified machinists or toolroom personnel familiar with deep hole drilling setups. Secure the shank fully in a properly sized chuck or collet before running; verify runout before engaging the cut. Observe machine manufacturer guidelines for spindle speed and feed rate appropriate to the workpiece material and drilling depth. Inspect the cutting edges and web condition before each use; damaged or worn geometry should be reground or the bit replaced before continuing production work.