This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter， which is madehigh quality HSS steel， and with the Titanium coated to reduce friction and heat. Suitable for cutting holes in a variety of materials including steel， brass， wood， plastic， etc.<br /><br />Features   <br />- 3Pcs HSS drill bit set， quality tool for jobs of all sizes<br />- Madehigh quality HSS steel<br />- Titanium coated to reduce friction and heat<br />- 3 sided shanks design in order to prevent slippage when in chuck<br />- Two flute design provides faster， smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps<br />- Size: 4-12mm， 4-20mm， 4-32mm<br />- Ideal for using to cut holes in a variety of materials including steel， brass， wood， plastic， etc.<br />- Comes with a storage pouch<br /><br />Specifications   <br />- Material: HSS Steel   <br />- Finish: Titanium   <br />- Color: Golden   <br />- Length:<br />          4-12mm Length: Approx. 6.8cm/ 2.64"<br />          4-20mm Length: Approx. 7.3cm/ 2.91"<br />          4-32mm Length: Approx. 10.2cm/ 4.02"   <br />The 3 Cutters Come in the Following Sizes:<br />          4-12mm 4mm， 6mm， 8mm， 10mm， 12mm<br />          4-20mm 4mm， 6mm， 8mm， 10mm， 12mm， 14mm， 16mm， 18mm， 20mm<br />          4-32mm 4mm， 6mm， 8mm， 10mm， 12mm， 14mm， 16mm， 18mm， 20mm， 22mm， 24mm， 26mm， 28mm， 30mm， 32mm     <br /><br />Package Included:        <br />1 x HSS Steel Drill Bit 4-12mm     <br />1 x HSS Steel Drill Bit 4-20mm     <br />1 x HSS Steel Drill Bit 4-32mm