843 Stepped drill bits, 4-20 mm, 75 mm The High quality stepped drill bit by Wera. 9 drill steps increasing by 2 mm for material with a maximum thickness of 4.5 mm. Comes with edge breaker for 1 mm sheet metal. " hexagon, suitable for holders as per DIN ISO 1173-D 6.3. 9 drill steps increasing by 2 mm
For material with a maximum thickness of 4.5 mm
With edge breaker (sheet metal deburrer) at diameter 10
For 1 mm sheet metal
1/4" hexagon suitable for holders as per DIN ISO 1173-D 6.3 Application: Construction 9 drill steps increasing by 2 mm for material with a max. thickness of 4.5 mm. With edge breaker (sheet metal countersink) at Ø 10 for 1-mm sheet metal Drive 1/4" hexagon, suitable for DIN ISO 1173-D 6.3 holders