Chicago-latrobe 54018 Cobalt Jobber Drill Bit Wire 8

Product Description

The CHICAGO-LATROBE 54018 is a cobalt jobber-length drill bit in wire size 8 (0.1990 inches), designed for high-performance drilling in tough ferrous materials. Built to M42 cobalt steel with a titanium nitride (TiN) coating, it delivers extended tool life and heat resistance under demanding production and maintenance conditions. The 135-degree split point reduces walking on entry and lowers thrust requirements, making it well-suited for hand-held and drill-press work on harder alloys. Licensed contractors, machinists, and industrial maintenance technicians are the primary users of this bit.

This drill bit is rated for primary use on stainless steel and carbon steel workpieces, where cobalt-grade tooling is standard practice. The TiN coating adds surface hardness and lubricity, reducing friction and built-up edge during repeated cuts. The right-hand spiral flute with regular helix clears chips efficiently in both through-hole and blind-hole applications. It is a practical choice for HVAC, mechanical, and fabrication shops that routinely drill into stainless enclosures, brackets, hangers, and structural steel. The bit conforms to DIN 338 and NAS 907 Type J standards.

Key Features

• M42 cobalt steel construction for high heat resistance in hard-material drilling
• TiN coating extends edge life and reduces friction on repeated passes
• 135-degree split point for fast, self-centering starts with reduced thrust
• Web-thinned, tapered web design improves chip clearance and cutting efficiency
• Right-hand cut with 2-flute regular spiral for reliable chip evacuation
• Meets DIN 338 and NAS 907 Type J standards for heavy-duty industrial use

Compatibility

Designed as a heavy-duty jobber-length drill bit for use on stainless steel and steel workpieces; suitable for drill presses and hand-held electric drills accepting a 0.1990-inch straight-cylindrical shank.

Installation Notes

Install this bit in a keyed or keyless chuck that accommodates a straight shank of 0.1990 inches. Use appropriate cutting fluid or coolant when drilling stainless steel to prevent work hardening and extend bit life; this bit does not support coolant-through delivery. Ensure the workpiece is securely clamped before drilling. Follow shop safety practices and applicable standards when operating drill presses or power hand drills.