M.a. Ford 20518750 Screw Machine Drill Bit 3/16 in Carbide

Product Description

The M.A. FORD 20518750 is a screw machine length drill bit designed for high-precision drilling in demanding trade and industrial applications. Built from solid carbide with a bright/uncoated finish, this bit measures 0.1875 inches in diameter with an overall length of 2-3/16 inches and a flute length of 1-1/8 inches. The 135-degree split point reduces walking and allows faster penetration with less feed pressure. A slow spiral flute geometry and web-thinned, parallel web configuration help evacuate chips efficiently. The straight-cylindrical shank seats securely in standard drill chucks. This bit is suited for machinists, fabricators, and maintenance professionals working with precision drilling setups.

This screw machine length drill bit is built for close-tolerance drilling in cast iron, non-ferrous metals, stainless steel, and steel. The compact screw machine length profile is well suited for drill presses, CNC machining centers, and manual lathes where clearance is limited and rigidity is critical. The 3xD flute-to-diameter ratio supports stable cutting in short-reach setups. A right-hand cut and two-flute spiral configuration make this bit a standard choice for production drilling and precision hole work across metalworking and fabrication trades.

Key Features

• Solid carbide construction for hardness and wear resistance in ferrous and non-ferrous materials
• 135-degree split point reduces thrust force and minimizes bit walking on entry
• Web-thinned parallel web improves chip clearance and cutting efficiency
• Screw machine length profile provides added rigidity over jobber-length bits in constrained setups
• Bright/uncoated finish maintains dimensional accuracy without coating buildup
• Diameter tolerance of +0.0000 to -0.0005 inches ensures close-fit hole quality

Compatibility

Designed for use in cast iron, non-ferrous metal, stainless steel, and steel workpieces. Compatible with standard drill chucks and collet systems accepting a 0.1875-inch straight-cylindrical shank. Part of the M.A. FORD Series 205 screw machine length carbide drill line covering the 0.1500 to 0.2000 inch diameter range.

Installation Notes

Installation and use should be performed by qualified machinists or tooling professionals familiar with cutting tool setup and safe machine operation. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits for the application. Always power down and lock out the machine before changing tooling. Solid carbide bits are brittle compared to high-speed steel — avoid side loading, interrupted cuts without proper feed rate adjustment, or dropping the bit on hard surfaces.