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230 Pcs(3/64"-1/2") Titanium Coated HSS Drill Bit Set

  • Based on 492 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
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Arrives Monday, Sep 14
Order within 7 hours and 58 minutes
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Size: 230pcs


Features

  • 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.

Description

Countersink Drill Bit Set 3PC Step Drill Bit Deburring Drill Bit Masonry Drill Bit 13Pcs Cobalt Drill Bit

Material: High Speed Steel (HSS)


Cutting Diameter: 0.5 inches


Finish Type: Titanium Aluminum Nitride


Shank Type: Straight


Cutting Angle String: 135 degrees


Brand Name: AIMLENTOOL


Item Highlight: 135° Tip for Iron, Aluminum Alloy, Copper, Wood, Plastic, with Hard Storage Indexed Box


Set Name: 230-Piece Multi-Material Drill Bit Set


Unit Count: 1 Count


Number of Packs: 1


Manufacturer: AIMLENTOOL


Part Number: TD-230PCS


Number of Pieces: 230


Cutting Diameter: 0.5 inches


Minimum Bore Diameter: 1.19 millimeters


Material Type: High Speed Steel (HSS)


Finish Types: Titanium Aluminum Nitride


Shank Type: Straight


Surface Recommendation: Copper, Metal, Plastic, Wood


Cutting Angle String: 135 degrees


Tool Flute Type: Spiral


Number of Flutes: 2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Cheap replacement for all the small drills you break
Like most of us, it's always the small drills that break the easiest. One little goof with the drill press and plink, there's a couple of bucks you'll never get back. What I like about this drill bit set is that they include a large number of duplicate small bits. I replaced the missing ones earlier broken in my drill index and I imagine I'll get a few years of a full index before I have to buy another set. I went into this purchase fully knowing that considering the country of origin (China) the quality would be suspect. But they appear adequate - I was drilling some steel yesterday and no problems. Best advice: use a drill press if you can, always use a drop of cutting oil on the bit as you drill into metal, use a relatively slow speed, and be sure what you're drilling is firmly fixed in place; the smallest movement will snap the drill. For wood or plastic these work fine, for metal just be gentle. ... show more
Reviewed in the United States on June 12, 2024 by RadioDale

  • Great value
Size: 1/16-13pcs
These are perfect for predirilling and pilot holes. As small as they are none have broken so far. Worth every penny they cost.
Reviewed in the United States on August 25, 2026 by Michael

  • Wasn't truly happy with this order
These weren't as good as it looks ,the bottoms broke off as soon as I used them
Reviewed in the United States on June 24, 2025 by seancropley

  • Nice tool
Size: 30pcs-HEX
Nice kit. One seems messed up but the rest are working fine.
Reviewed in the United States on September 27, 2025 by kevin wescott

  • Sturdy drill
Size: 30pcs-HEX
Son was very satisfied with the sturdy drill bits.
Reviewed in the United States on May 30, 2026 by Annie

  • NOT for metal.
These are alright for wood and plastics but are useless for metal. It took three of these bits to drill thru 1/8" mild steal. They dull really fast. I will pay a higher price in the future for a better grade drill bit.
Reviewed in the United States on July 31, 2026 by RJ Milligan

  • Easy to find sizes
Size: 30pcs-HEX
A wide selection of drill bits all in one handy carrying case.
Reviewed in the United States on July 14, 2026 by Bob OSullivan

  • Poor packaging - possibly lost pieces - otherwise nice set
Size: 230pcs
When the package arrived the plastic case was open and drill bits were everywhere! Took this photo half way thru the organization process, it took me about 30 minutes in total to sort all the sizes back out. I'm not sure if I have all of the smallest drill bits since I found about two dozen drill bits loose in the cardboard box it shipped in and the box corners didn't have tape to keep small things from falling out during shipping. On the upside, this is a really good price for the set. The quality isn't Kobalt but for something cheap to let students use freely they work adequately. I would not use these on steel (they shatter and bend very easily) but they function in wood, plastic or aluminum fine. If the company fixes their packaging problem I'd definitely rate this a 4 star set, until then 3 stars for the extra labor, risk of damage to the drills, and possible lost drill bits. ... show more
Reviewed in the United States on September 6, 2024 by University Lab Manager

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