Chicago-latrobe 42030 Jobber Drill Bit 15/32 in Hss Ticn

Product Description

The CHICAGO-LATROBE 42030 is a jobber-length drill bit designed for heavy-duty drilling in steel and similar ferrous materials. Built from M7 high speed steel with a TiCN (titanium carbonitride) coating, it delivers extended tool life and heat resistance compared to uncoated HSS bits. The 135-degree notched point reduces walking on entry and lowers thrust requirements, making it well-suited for production drilling and repeat-use applications. At 5.75 inches overall length with a 0.4688-inch diameter, this bit fits standard drill chucks and magnetic drill presses used by mechanical and industrial tradespeople.

The 42030 is intended for drilling steel, structural iron, and similar primary workpiece materials in both shop and field settings. The parabolic flute geometry evacuates chips aggressively, reducing chip packing in deeper holes. With a straight cylindrical shank and a diameter tolerance of -0.0010 to 0.0000 inches, the bit seats securely in three-jaw chucks. It is a practical choice for HVAC fabricators, pipefitters, ironworkers, and general maintenance mechanics who drill steel plate, tube, or structural shapes on a regular basis.

Key Features

• M7 high speed steel construction rated for heavy-duty drilling in steel
• TiCN coating increases surface hardness and extends service life versus uncoated HSS
• 135-degree notched split point reduces walking and decreases axial thrust on entry
• Parabolic flute profile promotes fast chip evacuation and reduces heat buildup in the hole
• Web-thinned tapered web for improved cutting efficiency at the chisel edge
• Straight cylindrical shank with tight diameter tolerance for consistent chuck grip

Compatibility

Designed as an OEM-style replacement or direct-use jobber drill bit for any standard three-jaw drill chuck accepting a 0.4688-inch straight cylindrical shank; fits bench drill presses, hand drills, and magnetic base drills used in steel fabrication and mechanical trade work.

Installation Notes

This bit is installed and operated by mechanical trades, pipefitters, HVAC fabricators, and maintenance mechanics. Secure the shank fully in the chuck jaws before operation and verify chuck key is removed before starting the drill. Use appropriate cutting fluid or lubricant when drilling steel to reduce heat and extend bit life. Wear eye protection and secure the workpiece firmly to prevent rotation during drilling.