Value Collection 01378603 Cobalt Drill Bit Size 60 135 Deg

Product Description

The VALUE COLLECTION 01378603 is a screw machine length cobalt drill bit designed for high-speed drilling in tough materials including stainless steel, hardened alloys, and heat-resistant metals. Built to a wire gauge Size 60 with a decimal equivalent of 0.0400 inches, this bit features a 135-degree split point for fast self-centering starts without a center punch. The cobalt construction provides superior heat resistance compared to standard high-speed steel bits. At 1.375 inches overall length, the stub-length body adds rigidity and reduces deflection in short-reach drilling applications. Machinists, tool-and-die workers, and maintenance technicians working on CNC mills, drill presses, or hand drills will find this bit suited to precision small-diameter work.

This drill bit is intended for use in screw machine, production, and general machining environments where a compact, rigid drill profile is required. The stub-length design is commonly chosen when drilling thin-gauge sheet metal, small fastener pilot holes, or precision holes in fixtures and jigs. Its 2-flute regular spiral geometry provides efficient chip evacuation in both ferrous and non-ferrous materials. The straight shank fits standard collets, drill chucks, and screw machine spindles without modification.

Key Features

• Wire gauge Size 60 with 0.0400 inch decimal diameter for precise small-bore applications
• Cobalt tool material for extended heat resistance and longer tool life in hard or abrasive materials
• 135-degree split point geometry promotes self-centering and reduces thrust force at entry
• Stub screw machine length at 1.375 inches overall reduces deflection and improves rigidity
• Right-hand cutting direction compatible with standard drill press and CNC spindle rotation
• 2-flute regular spiral design with straight shank fits standard collets and drill chucks

Compatibility

Designed as an OEM-style replacement or direct-use screw machine length drill bit suitable for standard drill chucks and collets accepting a straight shank in small-diameter wire gauge sizing.

Installation Notes

Installation is performed by machinists or maintenance technicians using a keyed or keyless drill chuck or collet system rated for small-diameter straight-shank bits. Ensure the chuck or collet is fully tightened and the workpiece is securely fixtured before beginning drilling. Use appropriate cutting fluid or coolant for cobalt bits when drilling ferrous materials to maximize tool life. Inspect the split point for chips or damage before each use, as small-diameter cobalt bits are brittle and should not be forced through hard stock.