Silverline 395021 Diamond Dust Holesaw 35mm

Ideal for cutting monoblock kitchen tap hole

This tool makes the perfect tap hole in Astracast kitchen sinks. Drill at a very slow speed with relatively light pressure, especially when drilling from the underside and when the tool is about to break through the top surface. Also keep the tool well flushed with water to cool and prevent clogging. With patience you will have a perfect smooth hole.

Not sure how many holes in sinks it would cut, but it is cheap enough to only use once or twice.Read full review

Verified purchase:  Yes • Condition: new • Sold by: jmpbargains