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They don’t slip in drill chucks. You can make deep countersinks easily by setting the countersink’s depth stop to allow the countersink to drill more deeply into the work surface. Size - 6mm(1/4"), 8mm(5/16"), 9mm(3/8"), 12mm(1/2"), 16mm(5/8"), 19mm(3/4").
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.