Guhring 9005490043000 Jobber Drill Bit No. 18 Hss

Product Description

The GUHRING 9005490043000 is a jobber-length drill bit engineered for high-performance metal cutting in professional trade and machining applications. Built from high speed steel (HSS) with a bright, uncoated finish, this bit carries a No. 18 wire gauge size corresponding to 0.1695 inches in diameter. The 130-degree split point reduces walking on entry and lowers thrust requirements. A parabolic flute geometry improves chip evacuation, making it well-suited for deeper holes where chip buildup is a concern. Overall length is 3-5/32 inches with a 1-27/32-inch flute length and a straight-cylindrical shank at 0.1693 inches. The bit is web-thinned with a tapered web configuration, conforming to DIN 338 standards.

This drill bit is designed primarily for cutting aluminum and non-ferrous materials, as indicated by the K, N, and P primary workpiece material codes under DIN classification. It is appropriate for use in production drilling, maintenance and repair operations, and fabrication environments where consistent hole quality at No. 18 wire gauge is required. The Series 549 designation places this bit in a high-performance HSS line. It is sold individually and suits both hand-held drill motors and drill press setups where a straight-cylindrical shank is compatible.

Key Features

• No. 18 wire gauge diameter — 0.1695 inches — conforming to DIN 338 specification
• 130-degree standard point angle with web thinning reduces entry force and bit walking
• Parabolic flute design promotes efficient chip evacuation at depths up to 1.5960 inches
• High speed steel construction with bright, uncoated finish for general-purpose metal cutting
• Straight-cylindrical shank at 0.1693 inches fits standard drill chucks without adapters
• 5xD flute-to-diameter ratio supports consistent performance through the full drilling depth

Compatibility

Designed as an OEM-style jobber-length drill bit for use in standard drill chucks accepting a straight-cylindrical shank; compatible with any drill motor, drill press, or CNC setup that accommodates a 0.1693-inch straight shank and is rated for HSS tooling at No. 18 wire gauge.

Installation Notes

This bit should be installed in a properly tightened drill chuck to prevent slippage during operation. Machinists and maintenance technicians should confirm spindle speed is appropriate for the workpiece material and bit diameter before drilling. Secure the workpiece firmly to prevent movement during entry. Inspect the cutting edges and web thinning for wear or chipping before each use, and replace the bit if the point geometry is compromised.