- 3 Pcs step drill bit set 3 Pcs step drill bit set 1pcs 4-12mm 2mm/step Shank diameter 6mm 1pcs 4-20mm 2mm/step Shank diameter 8mm 1pcs 4-32mm 2mm/step Shank diameter 10mm Material HSS Applies to Steel Plate thickness≤3mm Packed by double blister step drill bit
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Silicone Sealants

