Guhring 9005350024900 Taper Length Drill Bit 40 Hss

Product Description

The GUHRING 9005350024900 is a taper length drill bit in the Series 535 line, designed for high-performance drilling in demanding trade and production environments. Built from high speed steel (HSS) with a bright, uncoated finish, it carries a 130-degree standard point angle suited for accurate entry across a range of workpiece materials. The parabolic flute geometry promotes efficient chip evacuation, reducing heat buildup during extended drilling cycles. With a wire gauge size of 40 and a decimal diameter of 0.0980 inches, this bit serves precision hole applications where tight tolerances are required. It is web-thinned for reduced thrust at entry and features a parallel web configuration consistent with DIN 340 specification.

This drill bit is rated for use in aluminum alloy, cast iron, and steel. The taper length body provides greater reach than a jobber-length bit while maintaining rigidity, making it well suited for through-hole drilling in structural components, fixtures, and fabricated assemblies. The straight cylindrical shank accepts standard drill chucks and collet holders without modification. The flute-to-diameter ratio of 10xD and a maximum drilling depth of 2.2940 inches support controlled penetration in both manual and CNC-fed applications. Machinists, maintenance mechanics, and tool and die tradespeople will find this size appropriate for precision pilot holes and close-tolerance clearance holes.

Key Features

• Wire gauge size 40 (0.0980 inches decimal) with a diameter tolerance of +0.000 to -0.014 mm for tight fitment
• 130-degree standard point angle with web thinning for reduced entry thrust
• Parabolic flute design promotes fast chip evacuation in aluminum alloy, cast iron, and steel
• Taper length body at 3.75 inches OAL with a 2.4375-inch flute length for extended reach
• DIN 340 specification and High Performance grade rating
• Straight cylindrical shank is compatible with standard drill chucks and collet systems

Compatibility

Designed for use in aluminum alloy, cast iron, and steel workpieces. The straight cylindrical shank fits standard drill chucks and collet holders sized for a 0.0980-inch shank diameter. Suitable for use in CNC machining centers, drill presses, and hand-held pneumatic or electric drill motors that accept the shank size.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance tradespeople familiar with proper cutting speeds and feed rates for HSS tooling. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits to avoid premature wear. Do not exceed the maximum drilling depth of 2.2940 inches without retracting to clear chips. Coolant-through is not supported on this bit, so external cutting fluid or lubrication appropriate to the workpiece material is recommended for extended drilling operations.