Fully Ground Parabolic Flute Deep Hole Extra Long Drill Bits

Product description

Impact drills can be used for natural stone or concrete. They are universal, because they can use either the "single drill" mode or the "impact drill" mode, so they are basic electric tools worth choosing for professionals and hands-on workers. The electric hammer works by rotation and hammering. The single hammering force is very high and has a hammering frequency of 1000 to 3000 per minute, which can produce significant force.



There are two types of impact mechanism of impact electric drill: dog tooth type and ball type. The ball impact electric drill is composed of moving disc, fixed disc, steel ball, etc. The moving disc is connected with the main shaft through threads and is equipped with 12 steel balls; The fixed disc is fixed on the casing with four steel balls by pins. Under the action of thrust, 12 steel balls roll along the four steel balls, making the cemented carbide bit produce rotary impact motion, and can drill holes on brittle materials such as bricks, blocks, and concrete.






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Company profile

Hangzhou Fanxi Tools Co., Ltd.

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