DIN7425  wood auger drills
Material: HCS                                                                                    Finish: bright, or Ti-plated                           
Diameter: 10-20.0mm                                                                             hex shank  1/4" hex shank  sds-plus shank               
d1 L1 d2 L2 L3
h14 long jobbers long  jobbers jobbers long jobbers
10 300 245 13 12 160 50 40
11
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20