3Pcs HSS Steel Step Cone Drill 3-12/4-12/4-20mm Titanium Bit Set Hole Drilling
ab 7,74 €
Widely used. Perfect Hss step drill bits suitable for drill holes in various material: within 3mm/0.12" (iron plate, copper plate, aluminum plate, etc); within 5mm/0.2" (wood, PVC sheet, insulation boards, etc).
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