Century Drill Tool Co Inc 74116 Left Hand Cobalt Stub Drill Bit

Product Description

The CENTURY DRILL TOOL CO INC 74116 is a left-hand cobalt stub drill bit designed for professional-grade drilling applications where standard right-hand bits fall short. Built from cobalt steel, this bit delivers the heat resistance and hardness needed for drilling hardened fasteners, broken studs, and difficult materials. The 135-degree split point reduces walking and requires no center punch on most surfaces. Its stubby mechanics length provides added rigidity and strength in tight or confined work areas, making it a reliable choice for trade professionals who need consistent performance under demanding conditions.

This bit is well suited for automotive, industrial, and general mechanical work where a left-hand rotation is required — most commonly for removing stripped or broken bolts and fasteners. The stubby profile is especially useful in engine bays, equipment frames, and other confined spaces where a standard-length bit would not fit or would flex under load. The industrial polished finish reduces friction during the cut. Packaged in a quantity of 4 per unit, it is appropriate for shop stock or field kit replenishment.

Key Features

• Left-hand cutting direction for backed-out broken bolt removal
• Cobalt steel construction for improved heat and wear resistance
• 135-degree split point reduces walking and improves bite on flat surfaces
• Stubby mechanics length increases rigidity and strength in tight spaces
• Industrial polished finish reduces cutting friction
• Sold in a package of 4 bits

Compatibility

Designed as an OEM-style replacement and general-use left-hand stub drill bit compatible with standard 3-jaw drill chucks and reversible drill drivers accepting 1/4 inch round-shank bits.

Installation Notes

Installation of this bit requires a reversible drill or drill press set to left-hand (reverse) rotation. Ensure the chuck is fully tightened before drilling to prevent slippage. Always wear appropriate eye protection when drilling metal. Follow applicable shop safety standards and tool manufacturer guidelines for speed and feed rates when working with cobalt bits on hardened materials.