BOSCH 2608597638 HEX SHANK AUGER WOOD BIT 30X160X235MMSuitable for all soft & hard woods even wet wood Ideal for use in ancillary building trade for joiners & roofers Can be used in all drills with 13 mm chuck For throughholes predrilling for rafter nails & for deep dowel holes Precisionground for accurate dimensional stability when drilling