Chicago-latrobe 49737 Taper Length Drill Bit 37/64 in

Product Description

The CHICAGO-LATROBE 49737 is a taper length drill bit designed for general-purpose drilling in metal fabrication and machining applications. Built from high speed steel (HSS) with a coated finish, this bit measures 37/64 inch (0.5781 inches) in diameter and features a 118-degree standard point angle with web thinning for improved penetration and reduced thrust. The spiral flute design promotes efficient chip evacuation, and the straight shank provides secure chuck engagement. At 8.75 inches overall length with a 4.875-inch flute length, it offers extended reach compared to jobber-length bits. Licensed trades and machine shop professionals reach for this bit when standard-length tooling falls short.

The 49737 is sized for production and maintenance drilling where a longer flute is needed to reach depth or clear chips in deep-hole operations. It is suited for right-hand rotation drilling in alloy steel, carbon steel, and cast iron workpieces. The Series 120 designation places it within Chicago-Latrobe's general-purpose HSS line, making it a go-to option for tool crib stocking in industrial and contractor settings.

Key Features

• 37/64 inch (0.5781 inches) diameter with a tight diameter tolerance of +0.0000 to -0.0012 inches
• 118-degree standard point with web-thinned, tapered web configuration for easier starting and reduced walking
• High speed steel construction with coated finish for extended tool life in ferrous materials
• 4.875-inch spiral flute length supports deep-hole chip clearance
• Straight shank at 0.5781 inches diameter fits standard drill chucks without an adapter
• Right-hand cut, regular spiral — compatible with conventional drill press and handheld drill operation

Compatibility

Designed for general-purpose drilling in alloy steel, carbon steel, and cast iron. Fits any standard drill press or handheld drill chuck that accepts a straight shank at 0.5781 inches (14.68 mm) diameter.

Installation Notes

Installation and use should be performed by machinists, tool and die professionals, or qualified tradespeople familiar with drill press and rotary tool operation. Secure the workpiece firmly before drilling and confirm chuck tightness to prevent shank slippage. Use cutting fluid when drilling hardened alloy steels to manage heat and preserve cutting edge life. Inspect the point and flutes for wear or chipping before each use — a damaged cutting edge increases the risk of workpiece damage and bit breakage.