Tacklife PDH06A Classic Titanium Step Drill Bit Set & Automatic Center Punch，High Speed Steel |5-Piece Set| Total 50 Sizes，Double Cutting Blades Design with Aluminum Case[Product Information]- ▲ 50 SIZE IN 5 - The bits set includes five standard step drill bits that can replace 50 individual drill bits， you can process 50 different kinds of diameter holes with the five pieces
- ▲ HSS & TITANIUM COATING - High speed steel make it last longer than others， titanium coating ensure easily cut through steel sheets，aluminum sheets，copper & plastic & wood board and many other types of sheet metal with ease， and it can automatically deburr holes while drilling to keep the drill bit clean
- ▲AUTOMATIC CENTER PUNCH & PROTECTIVE ALUMINUM CASE - the center punch delivers an automatic， high-impact， spring-loaded strike through adjusting the cap; its brass body has a deeply knurled surface for nonslip control; and protective aluminum case to make the drills not easy to dull
- ▲DOUBLE CUTTING BLADES & THREE-SIDED SHANK - Double cutting blades and X-type openings design ensures a faster and smoother cutting; and 3-sided shank design prevents slip in drill chuck; Provided with small pressure and the sets can cut through the wood， sheet metal， steel and other surfaces
- ▲WHAT YOU GET - Tacklife Step Drill，Automatic Center Punch， Aluminum Case， User's Manual， 24 months warranty
