Value Collection 01378306 Size 30 Cobalt Drill Bit 135 Deg

Product Description

The VALUE COLLECTION 01378306 is a screw machine length cobalt drill bit designed for heavy-duty drilling in hard and abrasive materials. Built to a wire gauge Size 30 (0.1285 inch decimal equivalent), it features a 135-degree split point that reduces walking on entry and requires less thrust to start a hole. The cobalt construction provides heat resistance well beyond standard high-speed steel, making it suitable for stainless steel, cast iron, titanium alloys, and other tough workpiece materials. At 1-15/16 inches overall length, the stub-length body offers added rigidity compared to jobber-length bits, reducing deflection in short-reach applications. Licensed machinists, tool-and-die tradespeople, and maintenance mechanics are the primary users.

This bit is used in bench-top drill presses, CNC machining centers, and hand-held power drills where a rigid, short-flute geometry is needed. The stub screw machine length suits operations where breakout clearance is limited or where repeatable hole placement matters. The straight shank accepts standard drill chucks without adapters. With a 15/16-inch flute length, chip clearance is adequate for shallow-to-medium depth holes typical in sheet metal, structural steel fabrication, and general machine-shop work.

Key Features

• Cobalt tool material resists heat buildup when drilling hard and abrasive metals
• 135-degree split point reduces walking and lowers required feed force at entry
• Screw machine (stub) length provides greater rigidity and reduced deflection vs. jobber bits
• Right-hand cutting direction compatible with standard drill press and hand-drill operation
• Regular spiral with 2 flutes promotes efficient chip evacuation in most metals
• Straight shank fits standard drill chucks without additional tooling

Compatibility

Designed as a heavy-duty screw machine length drill bit for use in any standard drill chuck accepting a straight shank. Suitable for drilling stainless steel, hardened steel, cast iron, and other hard metals where cobalt grade tooling is specified.

Installation Notes

Installation is performed by machinists, tool-and-die technicians, or qualified maintenance personnel. Secure the shank firmly in a calibrated drill chuck and verify runout before use. Always power down and lock out the machine spindle before changing bits. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality.