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The BOSCH line of countersinks are great for deburring and chamfering openings to pre-drilled holes. Great for electrical, plumbing and HVAC contractors. BOSCH countersinks cut varied materials cleanly and accurately. With standard high-speed steel and super hard titanium-coated bits, these countersinks perform great in even the toughest materials.
From the Manufacturer
Bosch router bits are distinguished for their careful selection of materials, exactly calculated cutting geometry, long bit life, extra sharp cutting edges and low vibration.
Scott Vanstone
Reviewed in Canada on February 12, 2025
Tried using it to cut out some window openings. The material I tried to cut through was 7/16 OSB the bit did not cut well. It shook and vibrated my router, but I was able to return it without any problem.
Cristian T.
Reviewed in the United States on February 14, 2023
Excelentes, llego sin novedades
David Mesh
Reviewed in the United States on November 9, 2023
Burned up cutting 7/16 osb after two window openings
Johnny vandal
Reviewed in the United States on July 7, 2022
Does exactly what it says
Karin J.
Reviewed in Canada on December 5, 2019
Designed for thinner material not so good for .5 inch plywood . Good quality
Joey damery
Reviewed in the United States on September 11, 2018
Spiral provides a much cleaner cut, worked perfectly on cutting out the windows/door for 4 hunting blinds.
greg crawford
Reviewed in the United States on October 14, 2014
They work well when new but don't last. After about 30' of trimming 1/8" plywood, the bit was blued from heat and so dull it wouldn't track straight. I know it's not carbide, but I expected much more service than that from a Bosch product
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