Bosch Multi Construction Drill Bit Review
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This video is a response to Joe the Pro - Bosch Multi-Construction Drill Bit - Masonry, Brick, wood, metal
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All Comments (6)
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@CRF80TOP55 Hammer acts as if someone was hitting the back the drill while it is in use with a hammer. This is why they work great for drilling concrete. Hammer action is downward.
Impact provides the hitting force in a spinning direction. Think of it as hitting a wrench handle while trying to remove a stuck bolt. Impact action is twisting.
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it worked lousy because it´s too fat drill, if you first use small drill and then the fat one it will work better.
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why the driver drill have enough power to drill in concrete?
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First comment.
It worked lousy on a thin piece of aluminum, so it must be useless on steel or other hard metals.
scalabration 2 years ago 4
@scalabration these dont cut as agressivley/ fast as standard Hss bits due to their tip geometry, but on hardened steel they are extremley effective I am a safe engineer and regularly use these bits on safes which have steel hardened to rockwell #65. All in all a top class bit for the price. The carbide tip doesent chip easily either.
chriswillows 1 year ago 2