Titan Usa TC20108 Drill Bit Letter H Solid Carbide

Product Description

The TITAN USA TC20108 is a screw machine length drill bit sized at Letter H, equivalent to 0.2660 inches decimal diameter, ground from solid carbide stock. Its 135-degree split point reduces walking on entry and lowers thrust force compared to conventional 118-degree geometry. The bright, uncoated finish leaves the carbide substrate exposed for applications where coating buildup would affect tolerance. At 2.5 inches overall length, this stub-style bit is designed for rigid setups, CNC drilling centers, and screw machine operations where overhang must be minimized to control deflection. Two regular-spiral flutes evacuate chips efficiently through a 1.25-inch flute length. Right-hand cutting direction is standard.

This bit is suited for production drilling in metalworking environments, including job shops, machine shops, and manufacturing facilities running CNC machining centers or automatic screw machines. The solid carbide construction handles harder workpiece materials and higher feed rates than high-speed steel alternatives, making it a practical choice for ferrous and non-ferrous metals, cast iron, and other abrasive materials. The straight cylindrical shank fits standard drill chucks and collet systems without modification.

Key Features

• Letter H size: 0.2660 inches decimal diameter, within the 0.2500 to 0.3000 inch size range
• 135-degree split point for reduced entry thrust and self-centering action
• Solid carbide construction for extended tool life in hard and abrasive materials
• Screw machine (stub) length at 2.5 inches OAL minimizes deflection in rigid setups
• Bright, uncoated finish maintains tight diameter tolerance without coating buildup
• 2-flute regular spiral design promotes efficient chip evacuation

Compatibility

Designed as an OEM-style replacement or production tooling option for standard drill chucks and collet tool holders accepting straight cylindrical shanks in the 0.2500 to 0.3000 inch range.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine in a full stop, locked-out, and de-energized state per OSHA lockout/tagout requirements. Solid carbide is brittle and susceptible to chipping if the shank is not seated squarely and clamped with adequate torque in the holder. Avoid side-loading or using this bit in handheld drills where rigidity cannot be maintained. Inspect the cutting edges and flutes for chipping before each use.