Description:<br> 5pcs HSS M35 Co5% 1\/4 Inch Hex Shank Titanium Coated Step Cone Drill Bit 3-12mm\/4-12mm\/4-22mm\/6-24mm\/4-32mm<br>  <br> Specifications:<br> Type: Core Drill Bit<br> Item: HSS Step Drill Bits Set<br> Material: HSS M35 Co5%<br> Shank Size: 1\/4 Inch Hex Shank<br> Color: Golden<br> Drill Sizes:<br> 4-12 mm Spiral Flute Drill (9 steps:，5，6，7，8，9，10，11，12 mm)<br> 3-12 mm Spiral Flute Drill (9 steps: 3，4，5，6，7，8，9，10，12 mm)<br> 4-22 mm Spiral Flute Drill (10 steps:，6，8，10，12，14，16，18，20，22mm)<br> 6-24 mm Spiral Flute Drill (10 steps: 6，8，10，12，13，14，16，18，20，22，24 mm)<br> 4-32 mm Straight Flute Drill (15 Steps: 4， 6， 8， 10， 12， 14， 16， 18， 20， 22， 24， 26， 28， 30， 32mm)  <br> Quantity: 5pcs<br> (4pcs HSS Spiral Flute Drill Bits + 1pcs HSS Straight Flute Drill Bit)<br>  <br> Features:<br> 1. Fluted edges for faster， smoother cutting<br> 2. Sided shanks prevent slippage when in chuck<br> 3. Made from high quality HSS steel<br> 4. Drill perfectly round holes in a range of materials<br>  <br> Notice:   Due to the difference between different monitors， the picture may not reflect the actual color of the item.<br> Please consider this before the purchase.<br>  <br> Package Included:<br> 1x Set (5pcs) Step Drill Bits<br>  <br> More Details: