Titan Usa TC20259 Drill Bit Size 59 Solid Carbide 135 Deg

Product Description

The TITAN USA TC20259 is a screw machine length drill bit designed for precision drilling in tight spaces and high-cycle production environments. Built from solid carbide, it delivers superior hardness and wear resistance compared to high-speed steel alternatives. The 135-degree split point reduces walking on entry and lowers thrust requirements, making it well suited for drilling into hard or work-hardening materials. At 0.0410 inches in diameter (wire gauge size 59) with an overall length of 1.5 inches, this bit fits compact toolholders and turret setups. The bright, uncoated finish keeps costs predictable on regrind cycles.

This drill bit is used in CNC machining centers, drill presses, and screw machines where short overall length reduces deflection and improves hole accuracy on small-diameter work. Typical applications include metalworking in job shops, production machining, and toolroom operations requiring consistent, repeatable hole quality in ferrous and non-ferrous materials. The straight cylindrical shank accepts standard drill chucks and collet systems without modification.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive materials
• 135-degree split point reduces thrust and eliminates center punch requirements on most setups
• Screw machine length (1.5 inches OAL) minimizes deflection on small-diameter holes
• Regular spiral flute with 0.375-inch flute length promotes efficient chip evacuation
• Bright, uncoated finish suitable for regrinding and general-purpose use
• Right-hand cutting direction for use with standard spindle rotation

Compatibility

Designed as an OEM-style replacement or direct-use screw machine length drill bit for standard drill chucks and collet holders accepting a straight cylindrical shank in the 0.0410-inch diameter range.

Installation Notes

Installation and use of carbide drill bits should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the straight shank firmly in the chuck or collet to the full depth recommended by the toolholder manufacturer to prevent slippage and bit breakage. Carbide is brittle — avoid lateral loads, interrupted cuts without appropriate feeds and speeds, or impact that can cause chipping.