DeWalt 12pcs 3/16" Cobalt Drill Bits M35 135° Hex Chuck

12-Piece Cobalt Drill Bit Set

This DeWalt set contains 12 cobalt drill bits sized at 3/16 inch, designed for drilling hardened metal, stainless steel, cast iron, wood, and plastic. The M35 high-speed steel construction delivers high-temperature hardness and wear resistance suitable for demanding industrial applications. A 135-degree split point tip improves self-centering and reduces walking during drilling operations. The hex chuck design ensures compatibility with standard drill chucks and quick-change systems.

Upgrade from Standard High-Speed Steel Bits

The M35 cobalt composition maintains hardness up to HRC 68 at elevated temperatures where conventional bits soften, making the jump worthwhile when drilling tough alloys or stainless steel regularly. Heat-treated edges reduce heat buildup and extend service life compared to uncoated jobber bits in repetitive production work. The 12-piece quantity lowers the per-bit cost for workshops that consume bits quickly in high-volume metal fabrication.

Hex Chuck Bits for Standard Drills

These bits fit any standard drill with a hex chuck or three-jaw chuck adapter, requiring no specialised tooling for installation. The jobber-length geometry suits general-purpose drilling depths across automotive, aerospace, and mould-making tasks. A plastic storage case keeps the 12 bits organised and protected from damage between uses, freeing up workspace and reducing time spent searching for the correct size.