Features:  Center Punch Locator:  -Adjustable automatic center punch and window breaker.  -Delivers high-impact, spring-loaded.  -Enlarged plastic handle for impact cushioning.     Step Drills:  - This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat.  - It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.     Specification:  Step Drills:  Product Name: Titanium Coated Step Drill Bit;  Material: HSS / High Speed Steel;  Surface Treatment: Titanium Coated;  Shank Size: 1/4inch Hex Shank;  Sizes:  4-12mm( 5 step ): 4mm,6mm,8mm,10mm,12mm;  4-20mm( 9 step ): 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm;  3-12mm( 10 step ): 3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm;  Quantity:  1 Pc x 5 Step bit;  1 Pc x 9 Step bit;  1 Pc x 10 Step bit.     Center Punch Locator:  Produce Name: Center pin punch;  Specification: General type;  Color: Golden;  Bit material: HSS steel;  Main body material: Tool steel;  Total Length: Approx 128mm;  Bit diameter: 6mm;  Quantity: 1pc.     Package Included:  1 Pc x Center pin punch;  1 Pc x 5 Step bit;  1 Pc x 9 Step bit;  1 Pc x 10 Step bit