Value Collection 01378207 Cobalt Drill Bit Size 20

Product Description

The VALUE COLLECTION 01378207 is a cobalt screw machine length drill bit in wire gauge Size 20, equal to 0.1610 inch decimal diameter. Screw machine length bits are shorter than jobber-length bits, which increases rigidity and reduces deflection in drill press and CNC applications. The 135-degree split point self-centers on contact, eliminating the need for a center punch on most materials. Two regular spiral flutes provide efficient chip evacuation. This is a heavy-duty grade bit suited for machinists, tool-and-die workers, and production drilling operations working with hard steels, stainless steel, and high-temperature alloys where standard HSS bits wear prematurely.

Designed for production and precision drilling environments, this bit performs in drill presses, milling machines, and hand-held drilling equipment where a short, stiff cutting tool is required. The straight shank fits standard drill chucks. The cobalt alloy construction and straw finish indicate heat-treated tooling intended for intermittent or continuous use on ferrous and non-ferrous metals, plastics, and composite materials. Machinists and maintenance technicians working in manufacturing, fabrication, and repair settings are the primary users.

Key Features

• Size 20 wire gauge diameter, 0.1610 inch decimal equivalent
• Cobalt tool material for extended tool life in hard and abrasive materials
• 135-degree split point self-centers and reduces thrust force required
• Screw machine length overall at 2.125 inches for maximum rigidity
• 1.0625-inch flute length provides adequate chip clearance for the shortened body
• Right-hand cutting direction with regular spiral flute geometry
• No coolant-through design — standard external cutting fluid application

Compatibility

Fits any standard drill chuck accepting a straight shank within the Size 20 wire gauge range (0.1500 to 0.2000 inch decimal). Suitable for drill presses, CNC machining centers, and hand-held drills used in metal fabrication and production environments.

Installation Notes

Installed by machinists and tool operators into a standard drill chuck or collet holder. Ensure the shank is fully seated and the chuck is properly tightened before operation. Apply cutting fluid or coolant externally when drilling ferrous metals to extend tool life and reduce heat buildup. Inspect the split point for chipping or wear before each use — a damaged point causes runout and oversized holes.