Guhring 9005520094000 Stub Drill Bit 0.3701in Hss

Product Description

The GUHRING 9005520094000 is a stub-length (screw machine length) twist drill bit designed for high-performance drilling in aluminum and similarly machinable materials. Built from high speed steel (HSS) with a bright uncoated finish, it measures 0.3701 inches (9.40 mm) in diameter and carries a 130-degree split point angle for accurate entry without a center punch. The parabolic flute geometry promotes fast chip evacuation, reducing heat buildup and extending tool life in production environments. Web thinning reduces thrust requirements at the drill point. This drill is a solid choice for machinists, maintenance technicians, and tool-room operators running short-hole drilling operations.

This drill bit is suited for stub-length applications where rigidity and reduced deflection are priorities over deep-hole reach. The 3.3070-inch overall length and 1.5748-inch flute length make it well-matched to drill press, CNC machining center, and screw machine setups. It follows DIN 1897 standards and falls within the Series 552 family from GUHRING, targeting aluminum as the primary workpiece material. Maximum drilling depth is rated at 1.02 inches (25.90 mm), consistent with its 3xD flute-to-diameter ratio.

Key Features

• 0.3701 inches (9.40 mm) diameter with a tight tolerance of +0.000 to -0.022 mm
• 130-degree standard point angle for controlled entry and reduced walking
• Parabolic flute design accelerates chip evacuation in aluminum and soft metals
• Web-thinned parallel web lowers cutting thrust at entry
• Straight-cylindrical shank fits standard drill chucks and collets without modification
• Manufactured to DIN 1897 stub-length specification

Compatibility

Designed as an OEM-specification stub-length drill bit per DIN 1897, compatible with standard straight-shank drill chucks, Jacobs-style chucks, and ER collet systems accepting a 9.40 mm shank diameter. Primary workpiece material is aluminum; the parabolic flute geometry also performs in other non-ferrous and low-abrasion materials at appropriate feeds and speeds.

Installation Notes

Installation and use should be performed by qualified machinists or tool-room technicians familiar with cutting tool setup. Ensure the drill chuck or collet is clean and properly tightened before operation, and confirm spindle speed and feed rate are appropriate for the workpiece material and drill diameter. Always power down and lock out the machine before changing tooling. Do not exceed the rated maximum drilling depth of 1.02 inches per drill entry without retracting to clear chips.