The Best Square Drill Bit of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Square Drill Bit of 2022. Check our ranking below.
2,437 Reviews Scanned
Rank No. #1
12-Pack Square Drive Bits- PREMIUM S2 Alloy Steel Square Bit Set Magnetic Heads- Robertson Square Drill Bit Set (Long 2.55"& Hex Shank) Square Head Screwdriver Sizes #0, 1, 2, 3, and #4
- ADVANTAGE OF DYRECELVE: Professional quality authentic tools, an international tool brand, joins 2 million + powered by our leading technology.
- CNC PRECISION ASSEMBLY HEAD: CNC standard size square bit, can be deeply assembled into screw slot, easy to remove. Newest packaging with convenient drill bit holder.
- S2 ALLOY STEEL WITH MAGNETIC TIPS: Square drive bits adopt solid S2 alloy steel, industrial grade hardness HRC60±2, hardened core increases bit strength and improvese torque.
- FULL GENERAL SIZE: 12-pack square bits sizes: (2X) SQ0, (2X) SQ1, (4X) SQ2, (2X) SQ3, (2X) SQ4, applicable to all kinds of inner square screws. Each drill bit is labeled with its square bit size.
- WIDELY USED: This versatile black square drill bit set can be used in a variety of applications, including RVs, trailers, yachts, lawn mowers, electrical engineering projects, cabinet engineering, and furniture installation repair. Its wide range of uses makes it an essential tool for professionals and DIY enthusiasts alike.
SaleRank No. #2
Devvicoo 6PCS Square Hole Drill Bit Set for Mortise and Tenon Machine (Not Handheld), Bearing Steel Mortiser Bits - 5/8", 9/16", 1/2", 3/8", 5/16", 1/4"
- Mortiser Machine Compatibility: Designed exclusively for mortising machines drill presses. Not compatible with handheld drills, ensures clean, splinter-free square holes in hardwoods, MDF, and particle boards.
- Important for Square Bits: Always power off/unplug equipment before changing bits, select the correct size, and handle carefully to avoid damage.
- Bearing Steel Construction: Forged from 56HRC high-hardness bearing steel with heat-treated edges. Optimized for durable drilling in dense materials and extended tool life.
- U-Flute Debris Clearance: U-shaped flute channels rapidly eject wood debris, reduce friction, and prevent overheating during heavy-duty construction tasks.
- 6-Size Versatility: Covers furniture joints to cabinetry with six precision sizes (5/8", 9/16", 1/2", 3/8", 5/16", 1/4"). Suited for tenon cutters and woodworking jigs.
Rank No. #3
6pcs Square Hole Mortise Chisel Drill Bit Tools, 5/8" 9/16" 1/2" 3/8" 5/16" 1/4" HSS Woodworking Hole Saw Mortising Chisel Drill Bit Set, Different Sizes
- Size of this Square Hole Mortise Chisel Drill Bit set: 1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm),1/2 Inch (12.7mm), 5/8 Inch (16mm), 9/16 Inch (14mm)
- Material: Heat treatment, HRC48~50 high-speed steel.
- Suitable for all mortise and drill accessories.
- It can be used with mortise and tenon machine to achieve double effect.
- Reduce the labor intensity of construction workers, accelerate the construction speed, reduce the construction cost of construction, installation, decoration, decoration industry.
Rank No. #4
6 Pcs Square Hole Drill Bit Set for Wood - 5/8" 9/16" 1/2" 3/8" 5/16" 1/4" HSS Woodworking Hole Saw Mortising Chisel Square Hole Mortise Chisel Drill Bit Tools
- Drilling Sizes for Precision – These square hole drill bits allow you to create precise square holes in a variety of sizes, including 1/4 inch (6.35mm), 5/16 inch (8mm), 3/8 inch (9.5mm), 1/2 inch (12.7mm), 9/16 inch (14mm), and 5/8 inch (16mm), giving you the flexibility to handle different projects with accuracy.
- High-Quality Material – Made from high-speed steel and heat-treated for enhanced hardness, these drill bits feature a sharp square chisel design that ensures long-lasting durability while reducing the chance of breakage during heavy use.
- Wide Range of Applications – Perfect for working with various types of wood, including MDF, particle board, pine, and basswood. These bits are fully compatible with mortise and drill accessories, making them ideal for use with mortise and tenon machines.
- Time-Saving Efficiency – Designed to reduce labor intensity and speed up construction progress, these square hole drill bits help save time on projects such as woodworking, installation, renovation, and decoration, making your workflow more efficient.
- Important Usage Notes – These square drill bits must be used with a mortise machine and are not suitable for standard hand-held drills. If you plan to use them with a drill press, additional adapters or accessories are required to ensure proper connection and safe operation.
Rank No. #5
Fixinus 6 Pieces Square Screwdriver Bits, 1/4 inch Hex Shank S2 Steel Square SQ1 SQ2 SQ3 Drill Bits Magnetic Screwdriver Bit Set, 50mm Length
- Square screwdriver bit set in 3 different sizes: SQ1 SQ2 SQ3, 2 pieces of each size, total 6 pieces.
- Head Type: Square head; Hex Shank Diameter: 6.35mm / 1/4"; Total Length: 50mm / 2"
- Made of S2 alloy steel material for durability, impact resistance and wear resistance.
- These square head bits are magnetic and can be firmly attached to the screwdriver.
- Wide Application: Can be used for manual electric screwdriver, screwdriver, drill, air and other tools.
Rank No. #6
Square Hole Drill Bit Adapter for Easy Installation and Disassembly - Mortising Attachment for Drill Press, Mortise Machine, Power Tool Accessory for Drill Machines
- 【Mortising attachment for drill press】 Square hole drill bit adapter is fit for benchtop drill presses and hand drill clamp diameter ranging between 38 to 55mm/1.5 to 2.2inch, allowing for effortless installation and use. Your ultimate solution for enhancing the versatility of your table drill and hand drill. (pls kindly note, it only works benchtop drill presses hand drill that with clamp, not for all )
- 【Dual Use Support Bracket】Square Hole Drill Bit Adapter is for table drill and hand drill. Square Hole Drill Bit Adapter is perfect for woodworking, furniture making, and other related industries.
- 【Bench Drill Mortise Accessories】Mortise converter is easy to install and remove, you can quickly install or remove yourself, saving you time and effort.
- 【Premium Material】Square hole drill fixed bracket is made of all steel casting, sturdy. If you're looking for a versatile and efficient way to quickly install or disassemble drill accessories, then look no further than the Square Hole Drill Bit Adapter! Note: If stored in a humid environment for a long time, it may lead to some surface rusting, which can be improved by simply wiping some protective oil.
- 【Effective and Precise】With its precise design, the adapter ensures accurate and smooth drilling operations. 【Note】Square hole drill and electric drill are not included in the package.
SaleRank No. #7
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
- 👍 Sharp -These square hole drill bits made of bearing steel, hardness 56HRC, lengthened core, sharp cutting edge, continuous blade, quick cuttings, high efficiency.
- 👍 Our woodworking morstising chisel bits set Only use for the opening square hole and keyhole drill -- Square hole drill can not be used on an electric drill, bench drill, drill square holes need to fit a square hole drill drilling (mortise and tenon machine) to use.
- 👍 Very cost-effective -- Mortise and tenon square hole drilled by SaferCCTV + outer sleeve in the middle of the combination Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industrie
- 👍 Drills precise holes with little pressure -- Using different specifications of the square hole drill, matching the appropriate power of the square hole machine, you can play a square hole to meet the requirements - 1/2-Inch(12.7mm), 1/4-Inch(6mm), 3/4inch(19mm), 3/8-Inch(9.5mm) , 5/8-Inch(16mm), 5/16-Inch(8mm), 9/16-Inch(14mm).
- 👍 Unique service can make you rest assured to buy--(1)Warranty 14 months,a warranty system, to provide repair parts. (2) Professional sellers, and professional guidance, have more tool accessories to choose. (3)Provide professional use tutorials. (4) Often give away free tool products (because we clean stock). Please contact us if you need any of the above services.
Rank No. #8
ATOPLEE Square Hole Drill Bits for Wood,3pcs HSS Woodworking Square Mortise Drill Bit,5/16 Inch 3/8 Inch 1/2 Inch (All of Sizes)
- [NOTE]Square hole drills need to be used with square hole drilling machines (square tenoning machines). The square hole drill bit is composed of a center drill core bit and a sharp outer drill sleeve. Using this drill bit (installed on a square tenon machine) to make a square hole is faster than using a chisel or other manual methods, and the size of the square hole is more accurate.
- [SHARP AND EFFICINET]The Square Hole Drill Bit is made of High-Speed Steel.The blade is sharp and wear-resistant, the overall heat treatment (heat treatment), high hardness , long service life, the drill sleeve has a U-shaped design to facilitate the discharge of wood chips and improve the drilling efficiency.
- [SIZE]Drilling core length: 7-7/8Inch(200mm) ; Slotting flute diameter: 5/16"(8mm), 3/8"(9.5mm),1/2"(12.7mm);Total weight:approx 161g/190g/240g.
- [USAGE] This 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.
- [INCLUDED ] 3pcs 5/16 3/8 1/2 Inch square drill bit.
Rank No. #9
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)
- 🚩【Purchase Notes】The 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 Sizes】Drill bits diameters: 1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 1/2 Inch (12.7mm).
- 🔨【Easy to Drill】The 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 Applications】This 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 Service】WSOOX 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.
Rank No. #10
4 Pcs Mortise Chisel Set 1/4 5/16 3/8 1/2 Inch Square Hole Drill Bits for Mortiser Wood Mortising Chisel Drill Bit Hollow Chisel Mortise and Tenon Drill Tools
- FOR MORTISER ONLY. These square hole drill bits are exclusively for dedicated mortising machine. They are NOT compatible with any hand drill. Neither with drill press. If you want to use them with a drill press you must have a mortising adapter (not included) to attach them to the drill press.
- 4PCS SQUARE HOLE DRILL BITS FOR MORTISING. This is a set of 4pcs square hole drill bits of 1/4inch, 5/16inch, 3/8inch, and 1/2 inch (respectively 6.4mm, 8.0mm, 9.5mm, 12.7mm). Handy for mortising on a number of wood projects.
- EFFICIENT MORTISE AND TENON TOOLS. You may expect high efficiency from this mortise chisel set. They are made of high-speed steel which is known for its durability. The U-Shape chip chute discharge wood chips much easier.
- WOOD CHISEL SET FOR SQUARE HOLE MORTISING. This mortise chisel drill bit set is useful for drilling square holes on wooden materials, such as solid wood, MDF, chipboard, plyboard, etc.. They are NOT applicable to other material other than wood.
- WORRY FREE BUYING. A professional seller aims to provide quality products and great customer service! If you need any further information or have any question pre, during or after sale, PLS do not hesitate to send us Amazon message! Reply would be given within 24 hours.
Last update on 2025-11-02 / Affiliate links / Images from Amazon Product Advertising API
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- Brand Value: Every brand of Square Drill Bit has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an Square Drill Bit?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your Square Drill Bit.
- Customer Ratings: Number ratings grade Square Drill Bit objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Square Drill Bit.
- Product Quality: You don’t always get what you pay for with an Square Drill Bit, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an Square Drill Bit is should be an indication of how long it will work out for you.
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