HSS-Co (5% Cobalt) Drill Bits 1-13mm Set 25pcs (Split Point)

Engineered for heavy-duty metalworking, the HSS-Co (5% Cobalt) Drill Bit Set offers superior heat resistance and durability when drilling tough materials like stainless steel, cast iron, and structural steel.

Featuring self-centering split-point tips, these bits eliminate wandering, require less feed pressure, and deliver clean, accurate holes every time. Complete with a sturdy metal index case, this 25-piece set is built for trade-grade performance and long service life.

Key Features

• HSS Cobalt drills will hold their hardness at much higher temperatures than standard HSS Drills
• Good for drilling aluminium, cast iron and steel and especially good for stainless steel and other hard materials
• 25-Piece Complete Metric Set: Includes sizes 1.0mm to 13.0mm in 0.5mm increments.

Split Point geometry: (from 3.0mm up)

• Self centring (no wander)
• Closer hole tolerances
• Reduces thrust required