Chicago-latrobe 49512 Taper Length Drill Bit 3/16 in Hss

Product Description

The CHICAGO-LATROBE 49512 is a taper length drill bit designed for general-purpose metal drilling in trade and industrial applications. Built from high speed steel with a coated finish, this bit measures 0.1875 inches in diameter with a 118-degree standard point angle. The spiral flute geometry and web-thinned, tapered web configuration promote efficient chip evacuation and reduced thrust during entry. At 5.75 inches overall length with a 3.375-inch flute, the taper length body reaches deeper holes than a jobber-length bit without requiring an extension. The tanged shank seats securely in compatible drill chucks and taper-shank holders. Right-hand cutting with a regular spiral makes it a direct-fit for standard drill presses and hand drills used by machinists, pipefitters, and maintenance technicians.

The 49512 is suited for drilling alloy steel, carbon steel, cast iron, and tool steel in production and maintenance environments. The taper length design is commonly specified when a jobber-length bit lacks the reach for deep-hole work in flanges, structural members, or heavy-wall pipe fittings. The general-purpose grade and coated finish extend tool life under moderate feed rates and speeds without requiring coolant-through capability. Single-piece packaging makes it a practical bench stock item for tool cribs and service vans.

Key Features

• High speed steel construction for durability across ferrous metal applications
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Spiral flute design promotes chip clearance during deep-hole drilling
• Coated finish extends cutting life compared to uncoated HSS bits
• Tanged shank for positive drive in taper-shank holders
• Right-hand cut, no coolant-through required — compatible with standard drill setups

Compatibility

Designed for use in alloy steel, carbon steel, cast iron, and tool steel applications. Part of the CHICAGO-LATROBE 255AN series of taper length drill bits. Compatible with taper-shank drill chucks and holders accepting a 0.1875-inch shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with drilling equipment. Secure the workpiece firmly before drilling to prevent movement and ensure bit alignment. Verify that the drill press or hand drill is powered down and the bit is fully seated and locked in the chuck before starting. Follow applicable shop safety standards and use appropriate eye protection and cutting fluid for the material being drilled.