M.a. Ford 20403300A Jobber Drill Bit 0.0330 in Solid Carbide

Product Description

The M.A. FORD 20403300A is a jobber-length drill bit designed for precision drilling in demanding trade and industrial applications. Built from solid carbide with an ALtima TiN coating, this bit delivers extended tool life and heat resistance compared to high-speed steel alternatives. It measures 0.0330 inches in diameter with a 118-degree four-facet point and a right-hand spiral flute configuration. Overall length is 1.5 inches, with a flute length of 0.375 inches. The four-facet point geometry reduces thrust and improves centering accuracy. This bit is suited for machinists, toolroom techs, and maintenance professionals working with tight-tolerance small-diameter holes.

The 20403300A is rated for general-purpose drilling in cast iron, non-ferrous metals, stainless steel, and carbon steel. Its 5xD flute-to-diameter ratio and web-thinned construction make it effective in applications where chip evacuation and bit rigidity are critical. The straight-cylindrical shank fits standard collets and drill chucks. This bit is commonly used in CNC machining centers, drill presses, and handheld precision drilling setups where small-diameter accuracy is required.

Key Features

• Solid carbide construction provides superior hardness and wear resistance over HSS in abrasive materials
• ALtima TiN coating improves surface hardness and reduces friction at the cutting edge
• 118-degree four-facet point geometry improves centering and reduces required thrust force
• Web-thinned design promotes chip clearance and reduces heat buildup in deep holes
• Right-hand spiral flute with regular spiral type for consistent chip evacuation
• Diameter tolerance held to +0.0000 to -0.0005 inches for precision fitment

Compatibility

Designed for use in standard collets and drill chucks accepting a 0.0330-inch straight-cylindrical shank. Suitable for drilling cast iron, non-ferrous metals, stainless steel, and steel workpieces in general-purpose machining applications.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or toolroom technicians familiar with small-diameter carbide tooling. Secure the straight-cylindrical shank fully in the collet or chuck before operation to prevent runout. Carbide is brittle - avoid side loading, interrupted cuts without appropriate feed rate adjustments, and contact with hard surfaces during handling. Confirm spindle speed and feed rate are appropriate for the workpiece material and bit diameter before engaging the cut.