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Square Hole Drill Bit Adapter with 4pcs Square Hole Drill Bit, Mortising Attachment for Drill Press, Mortise Machine, Power Tool Accessory for Drill Machines

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$39.99

$ 19 .99 $19.99

In Stock

About this item

  • 【Square drill bit adapter】Fit for benchtop drill machine with hand drill clip diameters between 38 and 55mm (1.5 and 2.2 inches).
  • 【Please Note】This adapter is not suitable for lithium battery drills and bench drills without round bore bearings. Suitable for old table drills and household table drills, please pay attention before ordering.
  • 【Material】Square drill bit adapter is made of all-steel castings, which are strong and durable. If stored in a humid environment for a long time, it may cause some surface rust, which can be improved by simply wiping some protective oil.
  • 【Drill bit diameter】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.



Product Description

Square Hole Drill Bit Adapter and Square Hole Drill Bit Set

01

Specification:

Material: High Speed Steel (HSS)

Hardness: Up to HRC48~50

Square hole size: 1/4" (6.4mm), 5/16" (8mm), 3/8" (9.5mm), 1/2"(12.7mm)

Suitable for bench drilling machine, mortising machine or a mortising attachment.

Package included:

1pcs Square Hole Drill Bit Adapter

4pcs Woodworking chisel drill bits

01

Suitable for ordinary electric hand drill and household small table drill.

02

Square Hole Drill Bit

03

How to install these square drill bit?

1. The drill core is very sharp. Please wear working gloves to avoid direct contact between your hands and the drill bit during installation.

2. Put the square drill shell and drill core into the jig of the square tenoning machine, and then hold the square hole drill bit by hand

3. Take 0.5~1mm thick sheet (metal sheet or plastic sheet) and jam it at the step of the drill shell. After fixing the drill core, remove the sheet, then adjust the angle of the drill shell to the top to ensure clamping, so that a 0.5~1mm gap can be formed between the drill core head and the inner bevel of the drill shell, which can prevent the bit from jamming during use .


Forrest S.
Reviewed in the United States on February 8, 2025
Not strong enough to function, weak bits, weak construction. Buy a one piece kit, not this metal garbage. Wish I would have returned
Thunderpaw
Reviewed in the United States on February 7, 2025
Works ok. I do not like the bolts or having Philips head screws on the bit holder. These will strip out and it is a place that will get constant use even if you leave it as a permanent mount. At the swivel you may want to put loc-tite on the nuts they will vibrate loose. No instructions came with mine I have never used one. Make sure bit is all the way up till it stops or will not cut properly. Overall I seems to be a very good value fore the money.
David F
Reviewed in the United States on February 10, 2025
In principle, this tool attachment is a great idea. Unfortunately, the quality of the adapter and bits was so poor that it was unusable. The adapter didn't sit flush on the drill press fixed ring so it couldn't be centered properly. The bit housings weren't straight, and the bits contacted the insides of the housings. After spending an hour adjusting every piece, it produced a poor, off-center "almost" square hole.You're better off using a router or hand tools than messing with this attachment.
A+S
Reviewed in the United States on June 14, 2024
The bracket on this set is a but lower quality relative to others that are entirely cast iron based. However this kit does come with 4 bits which helps get you started much sooner. This bracket is also easier to mount then others I have used. Overall it's a good kit with great value but it is a less durable product.
pitorcas
Reviewed in the United States on December 4, 2024
I like the sharpness of the drill bit
Customer
Reviewed in the United States on December 17, 2024
It's great
Harold
Reviewed in the United States on October 4, 2024
Not at all what the review said this product can do had a hard time with this
Toby Honadel
Reviewed in the United States on October 23, 2024
it works
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