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FEATURES:
Various existing bits, can only process a circular hole, square hole can not be processed, to machining square hole, must drill the hole or cutting machine processed crude hole, then chisel made from artificial hand.
This utility model in the hole drilled by the rotary body, while the impact of the use of hammer impact force transmitted to the outer body, the material crushing round hole and square head wall, a one-time processing of a square hole, and the dust can be broken slag discharged from the tube.
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.
Professional wood drill, suitable for construction, installation, decoration, decoration and other industries.
Specifications:
Material: HSS ;Hardness: HRC 48~50
Holder diameter: 19mm (circular) ;Drilling core length: 200mm
Slotting flute diameter:1/4 Inch (6.4mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 1/2 Inch (12.7mm), 9/16 Inch (14mm), 5/8 Inch(16mm).
Package Included:
1 x 5/8-inch (16mm)
1 x 9/16-inch (14mm)
1 x 1/2-Inch(12.7mm)
1 x 3/8-Inch(9.5mm)
1 x 5/16-Inch(8mm)
1 x 1/4-Inch(6.4mm)
John Mclellan
Reviewed in the United States on June 18, 2024
Bits are all labeled in mm, so takes a little figuring to convert to standard. I had to hone them a bit because they had some burrs on the cutting edge. they aren't particularly hard but seem to hold up ok.
Patrick Brooks
Reviewed in the United States on December 26, 2024
The bits do not work they grind round holes instead of carving square hole. A true waste of money do not buy this product.
Father of Three
Reviewed in the United States on January 21, 2024
I didn’t buy to use with a mortiser. I intended to use to make square holes for my railing balusters. Work well and have stayed sharp. Getting the job done. Now I am looking at getting a mortiser to do more wood work.
By soccer player 12
Reviewed in the United States on April 15, 2024
Square hole drill bits. These work well. Their manufacturing finish are rough, compared to what I am use to in the US. Still, you get what you pay for. No issues, yet with their performance. Time will tell.
Jeffrey v widener
Reviewed in the United States on June 29, 2023
Very Satisfied with Quality and price
Stephen G.
Reviewed in the United States on November 4, 2023
Saw these advertised on Instagram and great value in Amazon. Great value and great addition the work bench
NaturaSource
Reviewed in the United States on October 16, 2023
They looked good and sharp but when using them noticed that the material was not hard enough. The shaft did not stay locked. I noticed that the bits are not hard and sharp enough to drill even softwood, grinding the shaft end and coming loose. Too much effort is required. Looking for a better-quality square mortise chisel set. Not recommended.
Gerald E.
Reviewed in the United States on June 24, 2022
did not like the fact that all bits had only metric labels
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