If you have a tool with a female threaded sleeve and you want to use it with your regular drill, this adapter is for you.

Our adapter will transform the female thread to a regular triangle 3/8 inch shank.

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If you have a tool with a female threaded sleeve and you want to use it with your regular drill, this adapter is for you.

Our adapter will transform the female thread to a regular triangle 3/8 inch shank.

Most of the heavy duty core hole saws used for concrete come with a female thread and with this adapter, you don't need to invest in a different tool.

Transform 5/8 inch - 11 Thread to Triangle 3/8 inch

Overall Length is about 1-1/2 inch

Material: Steel



  • Universal Thread Conversion: This Drilax drill adapter converts tools with a 5/8"-11 female thread (common on larger diamond bits and accessories) to a 3/8" triangle shank. Easily attach your specialized tools to any standard drill chuck.
  • Broad Tool Compatibility: Designed as a versatile core bit adapter and hole saw converter. Use it to connect diamond core masonry bits, large tile drill bits, diamond hole saws, and other threaded cutting tools to your conventional drills.
  • Expands Drill Versatility: Ideal for connecting 5/8"-11 threaded accessories like diamond polishing pads, granite polishing kits, and diamond cup grinding wheels directly to your standard cordless or electric drill. No need for specialized equipment.
  • Built Tough for Demanding Use: Crafted from a twist-resistant alloy, this arbor shaft adaptor ensures high durability and stable performance during rigorous applications. It maintains a secure connection, preventing slippage or damage to your valuable bits.
  • Works Across Diverse Materials: Enable your standard drill to tackle tough materials like granite, concrete, glass, brick, and tile by adapting the appropriate diamond core bits or hole saws via this adapter.
  • Seamless Integration: Perfect for enhancing your existing toolkit, this adapter is compatible with popular drill chucks, including DeWalt drill chucks for 5/8"-11 attachments, ensuring a reliable and efficient connection every time.
  • Universal Thread Conversion: This Drilax drill adapter converts tools with a 5/8"-11 female thread (common on larger diamond bits and accessories) to a 3/8" triangle shank. Easily attach your specialized tools to any standard drill chuck.
  • Broad Tool Compatibility: Designed as a versatile core bit adapter and hole saw converter. Use it to connect diamond core masonry bits, large tile drill bits, diamond hole saws, and other threaded cutting tools to your conventional drills.
  • Expands Drill Versatility: Ideal for connecting 5/8"-11 threaded accessories like diamond polishing pads, granite polishing kits, and diamond cup grinding wheels directly to your standard cordless or electric drill. No need for specialized equipment.
  • Built Tough for Demanding Use: Crafted from a twist-resistant alloy, this arbor shaft adaptor ensures high durability and stable performance during rigorous applications. It maintains a secure connection, preventing slippage or damage to your valuable bits.
  • Works Across Diverse Materials: Enable your standard drill to tackle tough materials like granite, concrete, glass, brick, and tile by adapting the appropriate diamond core bits or hole saws via this adapter.
  • Seamless Integration: Perfect for enhancing your existing toolkit, this adapter is compatible with popular drill chucks, including DeWalt drill chucks for 5/8"-11 attachments, ensuring a reliable and efficient connection every time.

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