Chicago-latrobe 49730 Taper Length Drill Bit 15/32 in Hss

Product Description

The CHICAGO-LATROBE 49730 is a taper length, straight shank twist drill bit designed for production and maintenance drilling in alloy steel, carbon steel, and cast iron. Built from high speed steel with a coated finish, the 49730 carries a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces thrust and aids chip evacuation at entry. The bit measures 0.4688 inches (15/32 inch) in diameter with an overall length of 7.5 inches and a flute length of 4.75 inches. Right-hand spiral fluting and a straight, non-threaded shank make it compatible with standard drill chucks. This is a general-purpose bit suited for trade professionals who need a longer reach than a jobber-length bit provides without stepping up to a full aircraft-extension style.

The 49730 fits residential and commercial maintenance, fabrication, and mechanical service applications where drilling through thicker stock or reaching into recessed bores is required. Its taper length body provides additional reach for HVAC equipment frames, structural steel, pipe flanges, and general mechanical assemblies. The Series 120 designation places it in Chicago-Latrobe's general-purpose high speed steel line, appropriate for hand-held or drill-press use in metal fabrication and field service work.

Key Features

• 15/32 inch (0.4688 inch) diameter with tight tolerance of +0.0000 to -0.0010 inches
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• High speed steel construction with coated finish for heat and wear resistance
• Taper length body — 7.5 inches overall, 4.75-inch flute — provides extended reach vs. jobber length
• Right-hand spiral flute with regular spiral type for consistent chip removal
• Straight shank, 0.4688 inches in diameter, fits standard three-jaw drill chucks
• Rated for alloy steel, carbon steel, and cast iron applications

Compatibility

Designed for use in alloy steel, carbon steel, and cast iron. Fits standard drill chucks accepting a 0.4688-inch straight shank. Suitable for drill press or hand-held power drill applications requiring taper length reach.

Installation Notes

Install and remove drill bits only with the drill fully powered down and secured. Ensure the chuck is tightened firmly on the straight shank before operation to prevent slipping under load. Use appropriate cutting fluid or coolant when drilling ferrous metals to extend bit life, noting this bit is not configured for coolant-through delivery. Eye protection and chip guards are standard requirements per applicable workplace safety codes when drilling metal.