Chicago-Latrobe 47925 25-Piece 135° Cobalt Jobber Drill Set

25-Piece Cobalt Drill Set

The Chicago-Latrobe 47925 set contains twenty-five jobber-length drill bits made from HAWA cobalt material. A 135-degree point angle reduces wandering and allows faster starts in metal. The straw-bronze finish identifies the heavy-duty cobalt construction. This set suits professional mechanics and serious DIY users who drill stainless steel and other hard alloys regularly.

Heat resistance and cutting efficiency

Cobalt alloy retains hardness at higher temperatures than standard high-speed steel, so the bits stay sharp longer during extended drilling sessions. The 135-degree split point lowers thrust requirements, which reduces heat build-up and operator fatigue. Consistent chip evacuation keeps the flutes clear, maintaining steady cutting action without excessive pressure or noise from the drill motor.

Workshop integration and storage

The twenty-five bits cover a broad range of diameters for maintenance, fabrication and automotive repair tasks. Jobber length provides standard reach for bench drills, hand drills and magnetic-base drills without needing specialised collets or adapters. The indexed case keeps each bit organised and protected, freeing drawer space and preventing lost or damaged cutting edges between jobs.