Chicago-latrobe 69890 Reduced Shank Drill Bit Set 16 Pc

Product Description

The CHICAGO-LATROBE 69890 is a 16-piece reduced shank drill bit set engineered for metalworking and general-purpose drilling applications. All bits are manufactured from high speed steel (HSS) with an oxide finish that provides corrosion resistance and reduces friction during cutting. The set covers a range from 17/32 inch to 1 inch in 1/32-inch step increments, with each bit featuring a 118-degree standard point angle and a 1/2-inch reduced shank diameter that allows larger-diameter bits to chuck into standard 1/2-inch capacity drill chucks. Bits are jobber length with a flute length of 3-1/8 inches and an overall length of 6 inches. The set is organized in a wood storage block for quick bit selection on the job.

This set is suited for machinists, fabricators, maintenance technicians, and trade professionals who regularly drill oversized holes in metal, composite, or multipurpose materials. The reduced shank design eliminates the need for a large-capacity drill press chuck when stepping up to larger bit diameters, making these bits practical for both bench drill press work and floor-model machines. Right-hand cutting direction is standard. Minimum hole size capability starts at 0.53 inch, with a maximum hole size of 1 inch, covering the most common large-diameter jobber drilling needs in light to medium fabrication environments.

Key Features

• 16-piece set ranging from 17/32 inch to 1 inch in 1/32-inch increments
• High speed steel construction with oxide coating for durability and reduced friction
• 1/2-inch reduced shank fits standard 1/2-inch drill chucks regardless of cutting diameter
• 118-degree standard point angle for general-purpose metalworking and multipurpose drilling
• Jobber length profile: 6-inch overall length with 3-1/8-inch flute length
• Wood storage block included for organized bit storage and fast job-site access

Compatibility

Designed for use in any drill press or machine equipped with a standard 1/2-inch capacity chuck. The reduced shank allows bits from 17/32 inch through 1 inch cutting diameter to seat in a 1/2-inch chuck without an adapter. Suitable for metalworking and multipurpose drilling in Series 190 applications.

Installation Notes

Installation of reduced shank drill bits requires a drill press or power drill with a 1/2-inch keyed or keyless chuck in good working condition. Ensure the chuck is fully tightened and the bit is seated squarely before beginning any cut. Secure workpieces firmly with a vise or clamp — never hand-hold metal stock during drilling. Follow applicable shop safety practices and machine manufacturer guidelines when operating drill presses at speeds appropriate for the bit diameter and material being drilled.