With the Phantom 51.520 machine reamer, you finish pre-drilled 4 mm holes to an exact H7 tolerance in accordance with the din 208 b standard. Crafted from premium hss-e steel with 5% cobalt, its 24 mm cutting edge retains exceptional hardness and heat resistance during demanding metalworking tasks. The robust MK1 Morse taper shank ensures rigid, chatter-free clamping directly into your machine spindle. This allows you to eliminate roughness and achieve smooth, precise bore finishing in tough alloyed and stainless steels.
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