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Feature: High-Speed tool steel clear chips and particles faster, make drilling precise and faster. Fit to electric power drill drivers and start repairs, installation, and renovation in metal, wood, and plastics.
Sharp & Wear-Resistant Material: These drill bits are made of 4241 high speed steel with titanium coating for proven capability and durability.
WIDE APPLICATION: drill bits keep centered without a pilot hole. These jobber self-centering drill bits have the rigidity and length for most applications of corded or cordless hand drills and drill presses. Ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood, and plastic.
Includes：3/64"(38pcs)，1/16"(40pcs)，5/64"(38pcs)，3/32"(23pcs)，1/8"(26pcs)，9/64"(20pcs)，5/32"(10pcs)，11/64"(5pcs)，3/16"(6pcs)，7/32"(3pcs)，15/64"(3pcs)，15/64"(3pcs)，1/4"(4pcs)，9/32"(3pcs)，19/64"(2pcs)，5/16"(3pcs)，21/64"(2pcs)，23/64"(2pcs)，3/8"(1cps)，1/2"(1pcs).
Professional After-Sales Service: The outer box for stepped drill bit is sturdy and easier to carry and store. If you are not fully satisfied with our product for any reason, please contact us for a 100% refund or replacement.

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