Wera 845 Hex Shank Single Flute Countersink

The Wera 845 Hex Shank Single Flute Countersink in 20.5mm is the largest in the range, built for heavy-duty countersinking and deburring on the biggest fixings and components. This size is the go-to choice for demanding professional applications in structural metalwork, heavy joinery, and fabrication where a large, precise countersink profile is required. The 1/4" hexagon shank delivers outstanding power transfer even at this larger diameter, and the single-flute design ensures chips are cleared rapidly and freely throughout each pass. As with all variants in the 845 series