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Kunio Ajimi
president
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Drills and Drill Bits |

Drills and Drill Bits |
Drills, Drill Bits and Dust Covers
A core drill bit is attached to a power drill to bore holes such as to install air conditioning equipment in buildings, recessed light fixtures, louver ducts and labor-saving round ventilating fans that have become mainstream in Japan recently. The core drill assembly is also used to drill holes in buildings for wiring and piping.
When drilling, the core drill leaves cylindrical chips inside the hole, and the removal of those chips is a difficult, time-consuming task. House BM’s Center Drill Bit with their chip removal system solves this problem, making chip removal easy.
House BM has developed a range of bits to handle any kind of material. One of their innovative products is the ventilation core drill which employs a method of exchanging the core drill bit of large, frequently-used sizes for lower cost and greater convenience rather than having a separate drill for each size bit. They have also developed convenient tools with patented functions to assist in various work environments including overseas work situations.
To accommodate different kinds of working materials, we have
developed a range of innovative bits including the ventilation
core drill, which employs exchangeable core drills of frequently-used
large sizes to achieve lower cost as well as greater convenience
compared with a complete set of tools of different sizes. In
addition, we have developed and commercialized domestic- and
foreign-patented functions and convenient tools suited to various
working environments in order to meet market needs.
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