Cleveland C12147 Taper Shank Drill Bit 23/64 in 1MT Hss

Product Description

The CLEVELAND C12147 is a taper shank drill bit designed for general-purpose drilling in metal, wood, and similar materials. It features a 23/64-inch diameter cutting edge and a No. 1 Morse Taper (1MT) shank, which seats directly into a compatible taper shank spindle or drill press quill without a chuck. The 118-degree standard point angle suits most common drilling applications, and the high-speed steel construction with an oxide finish provides adequate wear resistance for production and maintenance drilling environments. Machinists, tool and die technicians, and general shop personnel are the primary users of this bit.

This drill bit is built for use in drill presses, lathes, and milling machines equipped with a No. 1 Morse Taper socket. The 1MT shank makes it well suited for light to medium-duty drilling in job shop, maintenance, and light manufacturing settings where a keyed chuck is not available or preferred. The right-hand spiral flute and web-thinned point reduce thrust load and improve chip evacuation during through-hole and blind-hole drilling operations.

Key Features

• 23/64-inch diameter (0.3594 inches decimal) with a tight tolerance of +0.0000 to -0.0010 inches
• No. 1 Morse Taper (1MT) shank for direct spindle mounting without a chuck
• 118-degree standard point angle for general-purpose drilling
• Web-thinned point reduces drilling thrust and improves hole entry
• High-speed steel construction with oxide finish for corrosion and heat resistance
• Regular right-hand spiral flute promotes efficient chip removal

Compatibility

Designed for use in any machine spindle, drill press quill, or lathe tailstock fitted with a No. 1 Morse Taper socket.

Installation Notes

Installation and use of this tool should be performed by a qualified machinist or trained shop technician. Before mounting, ensure the machine spindle is powered off and fully stopped. Clean both the taper shank and the socket bore before seating to ensure proper contact and prevent fretting. Use a drift key and knockout bar to remove the bit from the socket — never strike the bit directly.