Suitable for all soft and hard woods even wet wood ideal for use in ancillary building trade for joiners and roofers can be used in all drills with 13 mm chuck for through holes pre drilling for rafter nails and for deep dowel holes precision ground for accurate dimensional stability when drilling fast drilling rate due to optimised flute geometry high break resistance fine surface finish total length 450 mm 12 x 360 x 450 mm d 6 35 mm