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By certification 
Square Hole Drill
This product can be used for hand electric drills and square tenoning machines. Suitable for logs and mahogany.
Selected Materials
Made of titanium steel and spring steel, the cutting edge is sharp and wear-resistant.
Sharp core, Seiko manufacturing, strong and sturdy, Not easy to break.
One piece of wood. A good tool is to use comfort, For your peace of mind, so we use our heart.
Drill Sleeve
The curved drill sleeve entrance is the standard design of kelly, which greatly reduces the resistance of the drill sleeve.
Universal Shank Type
The tail adopts a circular design to make the clamping more stable, suitable for square hole drills and square tenon machines.
http://www.woodsawblade.com/
