M.a. Ford. 20503700 Solid Carbide Screw Machine Drill Bit

Product Description

The M.A. FORD. 20503700 is a screw machine length drill bit designed for precision drilling in demanding industrial and production environments. Built from solid carbide with a bright, uncoated finish, this bit measures 0.037 inches in diameter and 1.5 inches in overall length. The 135-degree split point reduces walking and thrust on entry, while the web-thinned geometry improves chip evacuation. The slow spiral flute pattern and single-margin design make it well suited for short, rigid setups typical of screw machine and CNC drilling operations. Machinists, tool and die technicians, and production drilling specialists install this bit in applications requiring tight tolerances and consistent hole quality.

This drill bit is built for use in screw machine length applications where rigidity and precision are critical. Its primary workpiece materials include cast iron, non-ferrous metals, stainless steel, and steel, covering a broad range of production and job shop scenarios. The straight cylindrical shank at 0.037 inches diameter seats directly into standard collets or chucks sized for wire gauge tooling. The 0.4375-inch flute length supports short-hole drilling without excess tool overhang. It is a practical choice wherever small-diameter, high-accuracy holes are required in short-cycle machining operations.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• 135-degree split point reduces thrust and minimizes drill walk on entry
• Web-thinned design promotes chip flow and reduces cutting resistance
• Slow spiral flute geometry optimized for stainless steel, cast iron, and non-ferrous metals
• Bright, uncoated finish suitable for use with a wide range of cutting fluids
• Diameter tolerance held to +0.0000 to -0.0005 inches for consistent, repeatable hole sizing

Compatibility

Designed as a screw machine length replacement drill bit for production and CNC drilling setups requiring wire gauge sizing at 0.037 inches (No. 63 wire gauge) in cast iron, non-ferrous metal, stainless steel, and steel workpieces.

Installation Notes

Installation is performed by machinists or toolroom technicians in machine shop environments. Ensure the machine spindle is fully stopped and de-energized before changing tooling. Seat the straight cylindrical shank fully into the collet or chuck and confirm secure clamping before operation. Coolant through is not supported on this bit; apply cutting fluid externally as appropriate for the workpiece material.