M.a. Ford. 20403700 Jobber Length Drill Bit No. 63

Product Description

The M.A. FORD. 20403700 is a solid carbide jobber length drill bit sized to wire gauge No. 63, equal to 0.0370 inches in diameter. It features a 118-degree faceted point angle with web thinning for cleaner entry and reduced thrust. The spiral flute design in a regular helix promotes efficient chip evacuation during drilling operations. At 1.5 inches overall length with a 0.5-inch flute length, this bit is suited to precision drilling in tight tolerances. The straight-cylindrical shank matches the 0.0370-inch body diameter. Installation and setup are handled by machinists, tool and die workers, and maintenance technicians working with small-diameter precision holes.

This drill bit is designed for general-purpose drilling across a range of workpiece materials including cast iron, non-ferrous metals, stainless steel, and steel. Its solid carbide construction provides the hardness and wear resistance necessary for these materials, particularly at small diameters where high-speed steel bits are more prone to deflection or breakage. The 5xD flute-to-diameter ratio supports stable cutting in jobber-length applications. No coolant-through capability is present, so external coolant or cutting fluid application is recommended when drilling harder alloys or stainless steel.

Key Features

• Solid carbide construction for hardness and wear resistance in ferrous and non-ferrous materials
• Wire gauge No. 63 diameter: 0.0370 inches with diameter tolerance of -0.0005 to 0.0000 inches
• 118-degree faceted point with web thinning for reduced entry thrust
• Regular spiral flute with 5xD ratio for efficient chip removal
• Bright uncoated finish; straight-cylindrical shank for standard collet or chuck mounting
• ISO 9001:2015 certified manufacturing

Compatibility

Designed as a general-purpose jobber length drill bit compatible with standard straight-shank collets and chucks accepting a 0.0370-inch shank diameter. Suitable for use in CNC machining centers, drill presses, and precision hand-held drilling equipment configured for small-diameter carbide tooling.

Installation Notes

This bit should be installed by qualified machinists or tooling technicians familiar with small-diameter carbide tooling. Carbide is brittle compared to high-speed steel; avoid side loading, interrupted cuts without proper feed rate control, and excessive runout in the chuck or collet. Verify spindle runout is within acceptable limits before use, as even minor runout accelerates breakage at this diameter. Apply cutting fluid externally when drilling stainless steel or cast iron to manage heat and extend tool life.