Hitachi 728020 3/16-Inch Diamond Core Bit
Reviews of Hitachi 728020 3/16-Inch Diamond Core Bit
1.) Works well
Reviewed by: John San Anselmo, CA, USA
Rating: 
If you use this drill bit as its supposed to be used it works quite well. I used a water bath (constant water is essential) and drilled several holes in agate with no problems. Don't force the bit; take your time
2.) Hitachi 728020 3/16-Inch Diamond Core Bit
Reviewed by: William H. Arnold Zion, IL United States
Rating: 
Terrible product. Burned up trying to drill one hole in porcelain tile. Used a Blue Granite carbide bit and got the job done. Do not buy. Would give it 0 stars if I could.
Features of Hitachi 728020 3/16-Inch Diamond Core Bit
Hitachi's revolutionary line of diamond grit drill bits are ideal for the professional and/or serious DIYer who drills into hard materials like tile, marble, porcelain, granite, slate and glass. They significantly outperform the standard carbide glass and tile bits on the market today, both in speed of drilling and the number of holes that can be drilled per bit. These diamond grit drill bits are easy to use, only water is needed and they can be used with any cordless drill for flexibility and convenience.
1.) 3/16" Diamond Core Bit;
2.) Drill through Porcelain, Marble, Slate and Glass;
3.) Water Feed Needed;
4.) Drill up to 30-35 Holes;
5.) Diamond Grit;
Package Height x Length x Width: 5.5 in. x 5.5 in. x 1.7 in.
Package Weight: 0.2 lbs.
Accessories for Hitachi 728020 3/16-Inch Diamond Core Bit
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