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Core Drill Bit
Non-Core Bit

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Core Drill Bit
Core Drill Bit

Designed for drilling holes for marble and granite. Bonds selective for stone, marble or granite.
Specification
Item No. Inch MM T W
GCB20 3/4" 20 2.8 7.0
GCB25 1" 25 2.8 7.0
GCB28 1-1/8" 28 2.8 7.0
GCB30 1-1/4" 30 2.8 7.0
GCB36 1-3/8" 36 2.8 7.0
GCB38 1-1/2" 38 2.8 7.0
GCB42 1-5/8" 42 2.8 7.0
GCB50 2" 50 2.8 7.0
GCB57 2-1/4" 57 2.8 7.0
GCB65 2.5" 65 2.8 7.0
GCB75 3" 75 2.8 7.0
GCB90 3.5" 90 2.8 7.0
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DiaBoom Abrasives Inc.,
Tel: +82-2-336-0137 / Fax: +82-2-336-0138 / info@diatools.net
Head Office: 310-5 Yeonhee 3-dong, Seodaemun-ku, Seoul, Korea
Factory: 2104        Hangsin-dong, Docyang-ku, Kyunggi-do, Korea

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