The quick-release drill system for drilling, countersinking and screwing designed for use with Power Drills and Screwdrivers and is compatible with direct-drive 1/4in Hex Shank Power Bits. Drill Size.3.2mm. 1/8in. Countersink Size. No.10. https://elecena.pl/product/27169505/trend-snap-cs-10-countersink-with-1-8in-drill 2024-11-07 https://elecena.pl/product/27169505/trend-snap-cs-10-countersink-with-1-8in-drill 2025-03-18