Value Collection 01378447 Cobalt Drill Bit Size 44

Product Description

The VALUE COLLECTION 01378447 is a cobalt screw machine length drill bit designed for demanding metal-cutting applications where standard high-speed steel bits fall short. Built to a wire gauge size 44 (0.0860 inches decimal), it features a 135-degree split point that reduces walking on entry and requires less feed pressure at the start of the cut. The stub-length body keeps the bit rigid and minimizes deflection in short-hole work. Two regular spiral flutes clear chips efficiently. This bit is suited for machinists, tool-and-die technicians, and maintenance professionals drilling through hard or work-hardened materials.

Screw machine length drill bits are a standard choice in production machining, CNC drilling operations, and bench work where a shorter, stiffer bit improves accuracy and tool life. The cobalt construction makes this bit appropriate for stainless steel, cast iron, titanium, and other hard-to-machine alloys. The straight shank fits standard drill chucks and screw machine collets. Typical applications include tapping prep holes, clearance holes, and precision through-holes in ferrous and non-ferrous metals.

Key Features

• Cobalt tool material for improved heat resistance and extended life in hard metals
• 135-degree split point reduces bit walk and lowers entry force
• Stub screw machine length body provides extra rigidity and reduces deflection
• Two regular spiral flutes for efficient chip evacuation
• Straight shank for compatibility with standard drill chucks and collets
• Heavy duty grade construction for production and high-cycle use

Compatibility

Designed as an OEM-style replacement or standard replacement for wire gauge size 44 screw machine length drill bits used in drill presses, CNC machines, and hand-held drilling equipment with standard straight-shank chuck capacity.

Installation Notes

Secure the straight shank firmly in the drill chuck or collet before use, verifying runout is within acceptable limits for precision work. Always wear appropriate eye protection and secure the workpiece to prevent rotation. Use a cutting fluid appropriate for the base material, particularly when drilling stainless steel or other work-hardening alloys, to extend bit life and improve hole finish. Inspect the split point for wear or chipping between uses, as a dull point on cobalt tooling can generate excess heat and damage the workpiece.