Chicago-Latrobe 41800 29PC 135° Jobber Drill Bit Set

29-Piece Jobber Drill Bit Set

This 29-piece jobber drill bit set from Chicago-Latrobe delivers a comprehensive range of high-speed steel bits for general-purpose drilling tasks. The 135-degree point angle reduces walking and provides faster penetration in metal, wood and plastic. It suits maintenance technicians, metalworkers and DIY users who need a ready-to-use assortment in a single package. The set covers the most common diameters for everyday workshop and site work.

Capacity and headroom for 29 bits

With 29 bits included, the set handles a broad spread of hole sizes without needing separate purchases for each diameter. High-speed steel construction gives good wear resistance in ferrous and non-ferrous materials under normal speeds and feeds. The 135-degree split point keeps the bit centred on hard surfaces, but very deep holes or continuous high-volume production will exceed the practical flute length and heat dissipation of jobber-length tools. Users drilling abrasive alloys or thick plate should expect shorter bit life.

TiN finish and heavy-duty case

A titanium nitride coating increases surface hardness and reduces friction, extending bit life and allowing slightly higher cutting speeds compared with uncoated high-speed steel. The finish also improves chip evacuation in sticky materials such as aluminium. The heavy-duty case organises all 29 bits by size, protecting the cutting edges during transport and making selection quick on the job site. No additional software or digital accessories are included with this mechanical tool set.