M35 Cobalt twist drill electric drill bit For iron metal stainless steel 1.0 1.2 1.8 2.5 3.1 3.4 3.9 4.7 5.6 7.4 8.1 9.5 11 12mm

M35 Cobalt twist drill electric drill bit For iron metal stainless steel 1.0 1.2 1.8 2.5 3.1 3.4 3.9 4.7 5.6 7.4 8.1 9.5 11 12mm

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