Cleveland C12240 Taper Shank Drill Bit 29/32 in 3MT Hss

Product Description

The CLEVELAND C12240 is a taper shank drill bit designed for heavy-duty drilling applications in ferrous and non-ferrous metals. Built from high-speed steel with an oxide finish, it accepts a No. 3 Morse taper shank, making it compatible with drill presses, lathes, and milling machines equipped with a matching taper socket or sleeve. The 118-degree standard point and right-hand spiral flute geometry are suited for general-purpose production drilling. The web-thinned point reduces thrust and improves chip clearance at cut entry. Overall length is 10.75 inches with a flute length of 6.125 inches, providing substantial reach for deeper hole applications.

This bit is used in machine shops, maintenance facilities, and industrial production environments where larger-diameter holes are required and a Morse taper spindle connection is available. The 29/32-inch diameter (0.9063 inches decimal) is a common size for through-holes, counterbores, and preparatory drilling ahead of reaming. It is typically run on floor-standing drill presses or turret lathes and is installed by trades professionals including machinists and tool-and-die workers. The regular spiral flute type supports chip evacuation in through-hole drilling operations.

Key Features

• 29/32 inch diameter (0.9063 inches decimal) for precise, consistent hole sizing
• No. 3 Morse taper shank for secure, self-locking spindle connection
• High-speed steel construction for durability in general-purpose metal drilling
• 118-degree standard point with web thinning to reduce entry thrust
• Right-hand cut, regular spiral flute for efficient chip removal
• Oxide finish provides surface protection and reduced friction
• Conforms to ASME B94.11M standards

Compatibility

Designed for use in drill press spindles, lathe tailstocks, and milling machine quills fitted with a No. 3 Morse taper socket. A reducing or extending sleeve may be required depending on the machine spindle taper size.

Installation Notes

Installation is performed by machinists or qualified maintenance technicians. Power off and lock out the machine before inserting or removing the taper shank. Clean both the shank and the spindle socket of chips and oil before seating to ensure full taper contact. Use a drift key and drift slot to remove the bit safely — never strike the chuck or spindle housing directly.