# HUHAO 4-Piece Square Hole Drill Bit Set, 1/4–1/2 in

HUHAO’s four-piece square hole drill bit set is listed with sizes from 1/4 inch to 1/2 inch for wood mortising. It is intended for use with a square-hole mortising machine, so confirm your machine accepts these bits before buying.

- [Original product page](https://best-deals.pro/product/huhao-square-hole-mortising-drill-bit-set)
- [View offer](https://best-deals.pro/visit/huhao-square-hole-mortising-drill-bit-set)
- Market: US
- Language: en-US
- Currency: USD
- Brand: HUHAO
- Model: AZ20251119004
- Price: 22.99 USD
- Previous price: 45.99 USD
- Discount: 50%
- Price checked: 2026-11-14T06:39:58.175Z
- Rating: 4.5 / 5
- Reviews: 3

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Four listed bit sizes cover common small-to-medium square mortises.
- The listing describes use with a square-hole machine and matching machine power to bit size.
- The seller lists use on wood types including particleboard, channel wood, basswood and pine.
- Listing says the set is not suitable for metal, glass, concrete or gypsum board.

## Pros

- Four distinct sizes provide options for different mortise dimensions.
- The listed use covers several wood types, including particleboard, basswood and pine.

## Cons

- Use is limited to wood according to the listing, excluding metal, glass, concrete and gypsum board.

## Specifications

### Identity
- Brand: HUHAO
- Model: AZ20251119004
### Materials and construction
- Material listed: Alloy Steel
- Tool flute type: Straight
- Number of flutes: 2
### Sizes and intended work
- Bit sizes: 1/4 Inch \(6.4mm\),5/16 Inch \(8mm\),3/8 Inch \(9.5mm\),1/2 Inch \(12.7mm\)
- Recommended surface: Wood

## Before you buy

- The listing describes matching the bit specification and machine power to a square-hole mortising machine. Confirm that your setup is compatible before purchase. Claims about cutting efficiency, sharpness and chip removal are manufacturer statements, not independently verified performance.

## In the box

- Square hole drill bits (Included)

## A good fit for

- Woodworkers making square mortises in listed wood types.
- Buyers who need a four-size set spanning 1/4 to 1/2 inch.

## Less suited to

- People needing bits for metal, glass, concrete or gypsum board.
- Buyers who do not have a compatible square-hole mortising setup.

## Customer feedback

Only aggregate ratings are supplied, with a small total sample. They lean toward the higher star categories, but provide no customer comments or specific reasons, so they cannot establish performance or reliability for your woodworking setup.

## Frequently asked questions

### What sizes are included?
The listing specifies 1/4 inch \(6.4mm\), 5/16 inch \(8mm\), 3/8 inch \(9.5mm\) and 1/2 inch \(12.7mm\).
### What material can these bits cut?
They are listed for wood, including particleboard, channel wood, basswood and pine. The listing says they are not suitable for metal, glass, concrete or gypsum board.
### What machine are they intended for?
The listing describes use with a square-hole mortising machine and advises matching bit size to the machine's power. Check compatibility with your specific setup.

## Alternative options

- [Square Hole Drill Bit, Steel Hardness Sharp Mortising Chisel Set 1/2-Inch, 1/4-Inch, 3/4inch, 3/8-Inch, 5/8-Inch, 5/16-Inch, 9/16-Inch Woodworking Mortiser Drill Bit-7pcs](https://best-deals.pro/visit/huhao-square-hole-mortising-drill-bit-set)
- [Jecoupoon Square Hole Drill Bit 1/4" 5/16" 7/16" 1/2" 5/8" and Adapter \| Compatible with Bench Drill Presses and Hand Drill Clamps](https://best-deals.pro/visit/huhao-square-hole-mortising-drill-bit-set)
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- [Mortising Machine, Tenon Tools Mortising Attachment for Drill Press and Woodworking Mortise, Bench Drill Locator Set for Mortiser Circles/Square Hole Chisel Drilling Machine Mortise Machine.](https://best-deals.pro/visit/huhao-square-hole-mortising-drill-bit-set)
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- [3pcs M2 Steel 3-1/4" Extra Long Pilot Drill bit for Hole Saw Deep Cutting \| Titanium-Plated Hole Saw Center Drill bit for Metal, Steel, Iron, Wood, Plastic](https://best-deals.pro/visit/huhao-square-hole-mortising-drill-bit-set)
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- [Rvoykell 5-Piece HSS Wood Carving Drill Bit Set for Dremel, 1/8" Shank \| Five Burr Sizes for Grooves, Curves and Fine Detail Work](https://best-deals.pro/visit/huhao-square-hole-mortising-drill-bit-set)
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## Add-ons

- [Square Hole Drill Bit Adaptor, Easy Installation and Disassembly, Mortising Attachment for Drill Press, Mortise Machine, Power Tool Accessory for Drill Machines](https://best-deals.pro/visit/huhao-square-hole-mortising-drill-bit-set)

## Images

![HUHAO 4-Piece Square Hole Drill Bit Set, 1/4–1/2 in — 1](https://best-deals.pro/i/pswNl9sBVYoO09uK5YCgjBALIMQ4znWJ5T3_os1Cmbsc3JlGIi8x5tgjPfEl1swhXm6hpb6UuH4U_ahs650xdUYvZ5Hc-Nnz0VO0-cQqEzxivADCt9_H.jpg)

![HUHAO 4-Piece Square Hole Drill Bit Set, 1/4–1/2 in — 2](https://best-deals.pro/i/BpVUa4WilA5zu9Mmh0i00HQJUdTZYSnKXN69d_I5D6nGWXk6SSym9YPav1ThP5uGJUF_OL5y05cTxR8BsKa5it-BrvnXM4RySV43zlSyOQwuDnaiIpZG.jpg)

![HUHAO 4-Piece Square Hole Drill Bit Set, 1/4–1/2 in — 3](https://best-deals.pro/i/7uIoeCgb_rTy6HC4NNxAgNfl-yXkRlkdhGPL91kTCVIyzCpPhzAV0s4yaMhKA__F1nL0S-tgEhzxvAboaIjMabMwj1pI2pKq1dyTaww3ZMv_REoZtKiu.jpg)

![HUHAO 4-Piece Square Hole Drill Bit Set, 1/4–1/2 in — 4](https://best-deals.pro/i/9mn0kFWgEu_AK7zwliSednGyh0HOAlHSSYZ2NXya6Xm8DI5mxtkrI-EtKsj5ZulL0z-zA9jT9EQvzX9TQXDj52ikJj7XdF8uvetBRsJxXBis3FRSzOIw.jpg)

![HUHAO 4-Piece Square Hole Drill Bit Set, 1/4–1/2 in — 5](https://best-deals.pro/i/4LPDi5LqlMb_kODiDwCf3U3EzIynQ5_A9YXxFkC7pH8ltZKXjq55CSKB8QD5KP9AsKPDWSmjJmxr67Vzp_loGK3BuuOiLgf7G3I-ZICUQk727Xf9TYuS.jpg)

![HUHAO 4-Piece Square Hole Drill Bit Set, 1/4–1/2 in — 6](https://best-deals.pro/i/16mTUEvdwusarxfoqu6Lct7PWcMZGy5uKMfukeHqtdEt3akCzTA8SuJJDBQ-FTFpn6vHw1oJdnaE8kaOpzOZtY0twXJw3CFjeh1XUtcGeF7sXQJ_g33-.jpg)

![HUHAO 4-Piece Square Hole Drill Bit Set, 1/4–1/2 in — 7](https://best-deals.pro/i/neDvSNhkd8B7Psb4oecGo6ECtfwvv-gzwptBR7qoGV7OabDvl1wL4z2eWPRpup8sDi9xgX-BzefRrAMoVar7rObD4u5q_RSi0E1Y83R5r-3fvxhN6Lho.jpg)