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WSOOX Square Hole Drill Bits for Wood, Woodworking Hole Saw Mortising Chisel Drill Bits (Size: 1/4 inch, 5/16 inch, 3/8 inch, 1/2 inch)

  • Based on 1,039 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Mar 15
Order within 3 hours and 42 minutes
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Features

  • Purchase NotesThe square hole drill bits need to be used in conjunction with the mortise machine. These drill bits not usable with a hand held drill. If you want to use these drill bits on drill press, you need accessories to connect to a drill press.
  • Drill Bits SizesDrill bits diameters: 1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 1/2 Inch (12.7mm).
  • Easy to DrillThe carbide drill bit tipped is sharp and wear-resistant. With high hardness and long service life. The drill sleeve has a U-shaped design to facilitate the discharge of wood chips and improve the drilling efficiency.
  • Widely ApplicationsThis square hole drill bit is suitable for wood, including MDF, MDF, particle board, channel wood, pine wood, basswood, etc. Note: It is not suitable for processing metal, glass, plastic, concrete, gypsum board etc.
  • After-sale ServiceWSOOX tools store provide customers with quality but affordable tools. If you have any problem with these square hole drill bits, please contact us feel free and we will reply you within 24h.

Material: High Speed Steel (HSS)


Cutting Diameter: 8 Millimeters


Finish Type: Uncoated


Shank Type: Straight


Cutting Angle String: 90 Degrees


Material: ‎High Speed Steel (HSS)


Cutting Diameter: ‎8 Millimeters


Finish Type: ‎Uncoated


Shank Type: ‎Straight


Cutting Angle String: ‎90 Degrees


Brand: ‎WSOOX


Tool Flute Type: ‎spiral drill bit


Point Style: ‎Brad Point


Surface Recommendation: ‎Wood


Number of Flutes: ‎2


UPC: ‎823540288352


Set Name: ‎4-Piece Set


Unit Count: ‎4.0 Count


Manufacturer: ‎WSXTOOL


Number of Pieces: ‎4


Package Dimensions: ‎9.17 x 4.41 x 2.05 inches


Item Weight: ‎3.52 ounces


Item model number: ‎WSXTOOL


Date First Available: ‎January 2, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 15

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good product
Great heavy duty! Perfect gift
Reviewed in the United States on December 17, 2025 by Kaycee

  • Exellent
They work great.
Reviewed in the United States on August 23, 2025 by El Pelon

  • Makes easy work for joints
Works great and makes nice work of mortise and tenon joints
Reviewed in the United States on January 29, 2026 by Mike G.

  • Worked well good value
Good shipping
Reviewed in the United States on January 23, 2026 by Tom

  • great for making square holes
these are very good drill bits. cutting is very easy
Reviewed in the United States on October 4, 2025 by Dave Schutt

  • you need a special attachment on drillpress to use this product.
I was not aware you needed a special machine to use these drill bits. I have not been able to use them at all to give an honest opinion. It should have been mentioned in the advertising on the site. I am not a happy camper.
Reviewed in the United States on January 6, 2024 by Bruce safbom

  • Mechas para taladro
Wow me gustó mucho
Reviewed in the United States on September 1, 2025 by Son excelentes

  • Not clear in what is required
It was not mentioned that another device was needed in order to use the drill bit it would soin but no square hole was ever made.
Reviewed in the United States on January 27, 2026 by Jesus

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