Guhring 9005520071400 Screw Machine Drill Bit 9/32 in Hss

Product Description

The GUHRING 9005520071400 is a stub-length screw machine drill bit designed for high-performance drilling in production and machining environments. Built from high speed steel with a bright, uncoated finish, this Series 552 bit features a parabolic flute geometry and a web-thinned parallel web that promotes efficient chip evacuation and reduced thrust in short-reach applications. The 130-degree split point angle supports accurate starting without a center punch. At 9/32 inches (0.2812 inches) in diameter with a straight-cylindrical shank, it is sized for use in drill presses, CNC machining centers, and hand-held power tools. Machinists and tool-and-die professionals install this style of bit for repetitive production drilling where a stubby, rigid tool is preferred over a jobber-length bit.

This bit is rated for primary use in aluminum and is well suited to non-ferrous metals and softer workpiece materials common in production screw machine and light machining operations. The parabolic flute profile moves chips up and out of the hole quickly, which reduces heat buildup and extends tool life during high-cycle drilling. The stub-length body provides added rigidity compared to jobber-length drills, making it a practical choice when drill press quill travel is limited or when chatter is a concern in tight fixture setups. The straight-cylindrical shank fits standard drill chucks without an adapter.

Key Features

• 9/32 inches (0.2812 inches) diameter, also cataloged as Letter K drill size
• High speed steel construction for durability in repetitive production drilling
• Parabolic flute geometry promotes fast chip evacuation and reduced cutting force
• 130-degree point angle with web-thinned parallel web for accurate entry
• Stub length body (2-29/32 inches overall) provides rigidity in tight setups
• Bright, uncoated finish suitable for aluminum and non-ferrous workpieces
• Manufactured to DIN 1897 specification for consistent dimensional accuracy

Compatibility

Designed as an OEM-style replacement or direct-service drill bit for standard 3-jaw drill chucks accepting straight-cylindrical shanks. Diameter tolerance of +0.000 to -0.022 mm conforms to DIN 1897, making it a drop-in fit for any chuck or collet rated for 9/32 inches straight-shank tooling.

Installation Notes

Installation is performed by machinists, tool-and-die technicians, or mechanical contractors using standard drill press or CNC equipment. Secure the straight-cylindrical shank fully in the chuck jaws and verify runout before drilling. Disengage power and lock the spindle before changing or inspecting bits. Do not use this stub-length bit as a substitute for a jobber or aircraft-extension drill where reach depth exceeds the rated maximum drilling depth of 0.917 inches.