Carbide metal multi purpose drill bit set 4 piece 4 mm 5 mm 6 mm 8 mm bosch cyl 9 multi construction 2607010521 cyli
Centring tip active centring tip for active cutting in concrete fine grade high durable carbide extra long life best wear resistance 2 cutter awb brazing and hardening diameter optimised brazing and hardening technology to increase the robustness of the drill bit and reduce the vibration during drilling diamond ground cutting edges special ground tip enables multi purpose drilling 4 flute dura design reinforced core section for better wear resistance and stability when drilling in con
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