Product Name: 3PC Step Drill Set Titanium Straight Flute Model NO.: 17pAGR2 Usage: metal Drilling Material: High Speed Steel Type: Twist Drill Bit Standard: BIN, JIS, AISI, DIN Customized: Customized Flute: 2-Flute Design, Straight Flute Shank: Round / 3-Flat / Hex Surface: Titanium Coating Trademark: OEM available Transport Package: Plastic Case or metal Case Specification: See the table below Origin: China HS Code: 8205100000 Product Description Features:Made from HSS or Cobalt HSSCBN fully groud, 2 flute design, split point angleLaser etched size markingFor cutting varying hole sizes in sheet material up to 4mm thickShank options: Round shank, 3-flat shank, hex shankCoating: Titanium CoatingPackage: Storaged into a ROSE plastic caseSet includes:1pc4-12mm1pc4-20mm1pc4-30mm