Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come. | Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes. | Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits). | Please mark the spot that you are to drill for easier drilling and improved drill bits life. | All the bits come in a well-organized case for easy transport and storage.

Height Adjustable ----- 2-piece steel poles in chrome & black finish feature anti-corrosion provide 2 heights (24" or 16.50"), ideal to accommodate different needs. | Stylish & Safe ----- Unique cigarette ashtray in chrome & black finish looks luxury and artistic, well blending into any décor; metal ash urn interior minimizes smoldering. | Removable Ash Urn ----- The removable top ensures simple cleaning, just remove the ashtray, empty ashes inside and wipe out the ash residues, then you will find nothing but a spotless and elegant cigarette tray. | Added Stability ----- A weighted & larger base provides added indoor stability, no worry for a falling-down ashtray or ash spilling, better keeping your space in tidy. | Quick Assembly ----- Quickly assemble this lovely standing ashtray within 5 minutes using the instruction provided for your convenience.

HSS Steel Construction ----- High-speed steel construction for longer cutting edge life even at extreme temperatures. | Titanium Coating ----- Coated by titanium, this step drill set performs well in heat, corrosion and rust resistance. | Automatic Center Punch ----- Delivers an automatic, high-impact, spring-loaded strike when pressed against surface, adjustable cap regulates striking force. | 50 Size In 5 ----- The bits set includes five standard step drill bits that can replace 50 individual drill bits. | A Must-have for Handyman or Professionals ----- Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper and many other types of sheet metal.