M.a. Ford 20516600 Screw Machine Drill Bit 0.166 in

Product Description

The M.A. FORD 20516600 is a screw machine length drill bit designed for precision drilling in demanding trade and industrial applications. Built from solid carbide with a bright/uncoated finish, this bit measures 0.166 inches in diameter (wire size 19) with a 135-degree split point and web-thinned geometry for fast engagement and reduced thrust. The overall length is 2.125 inches with a 1.0625-inch spiral flute length. Right-hand cut with a slow spiral and straight-cylindrical shank, this bit suits CNC machining centers, drill presses, and manual setups where a compact stub-length tool is required.

This bit is suited for drilling cast iron, non-ferrous metals, stainless steel, and general steel stock. The screw machine length profile keeps the tool short and rigid, reducing deflection in high-precision applications such as component manufacturing, maintenance machining, and production drilling. The single-margin, slow-spiral flute design aids chip evacuation in tough, stringy materials. No coolant-through capability is present, so external coolant or cutting fluid should be applied as needed for heat management.

Key Features

• Solid carbide construction for hardness and wear resistance in ferrous and non-ferrous materials
• 135-degree split point with web-thinned tip reduces walking and lowers entry thrust
• Slow spiral flute promotes chip control in cast iron and stainless steel
• Screw machine (stub) length body at 2.125 inches overall increases rigidity and minimizes deflection
• Bright/uncoated finish compatible with a wide range of cutting fluids without coating interaction
• Straight-cylindrical shank at 0.166 inches diameter fits standard drill chucks and collets

Compatibility

Designed as a screw machine length replacement drill bit in the M.A. FORD Series 205 line, suited for wire size 19 (0.166-inch diameter) applications across drill presses, CNC machining centers, and turret lathes used in metalworking trades.

Installation Notes

Installation and use should be performed by machinists or maintenance technicians familiar with carbide tooling. Ensure the spindle and chuck or collet are clean and properly tightened before operation, as solid carbide is brittle and sensitive to side loading or runout. Power down and lock out the machine before changing bits. Apply cutting fluid externally to manage heat; avoid dry running in stainless steel or steel without lubrication.