Chicago-Latrobe 550 115-Piece Heavy-Duty Cobalt Steel Drill Bit Set
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Category: chicago latrobe 550

About this item
- Manufactured to NAS 907 Type J geometry aerospace specifications with self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging and gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
- Sizes in Set: 1/16 - 1/2 x 64ths; #1 - #60; A - Z
- Number of Tools: 115
- Reinforced design for enhanced durability and stiffness in contrast to typical drill bits.
- Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys