Step Drill Bits

• Available in High Speed Steel and Titanium Nitride-coated HSS
  
  
• Point Cut: split point DIN 1412 C
  
  
• Point angle: 118°
  
  
• Step angle: 90°
  
  
• Right-hand cutting
  
  

• The split point reduces “walking” which is the tendency of a spinning bit to rotate away from the point at which you want to drill
  
  
• Because CBN (cubical boron nitride) is a much harder abrasive than even silicon carbide or corundum, a better and sharper cutting edge is achieved without burrs.
  
  
• Because of this higher dimensional precision, these industrial drill bits will last considerably longer while maintaining precise process tolerances.
  
  
• Available in High Speed Steel (HSS) and Titanium Nitride-coated (Tin-coated) High Speed Steel,
  
  
• The added titanium nitride coating increases the surface hardness to approximately 2300 HV and the heat resistance to 1100°F (600°C).
  
  
• The High Speed Steel (HSS) allows the bit to cut faster than High Carbon Steel. At room temperature, HSS and high carbon steel have an equivalent hardness; at elevated temperatures HSS become advantageous
  
  
• The Titanium Nitride (TiN) coating is an extremely hard ceramic. It is often used as a coating on HSS to improve hardness and durability

• CBN-ground flutes without burrs mean a superior cutting edge and longer tool life
• Each step has a radially adjusted relief produced by CBN grinding, relating directly to the diameter of the step, so the cutting edge is always the highest point of the diameter
• Each step is axially CBN relief-ground, meaning the cutting edge is also the highest point of the axial cutting axis
• The cutting edge of each step has relief angle, meaning the cutting edge is also the highest point in advance direction
• The CBN-ground point ensures centering and spot-drilling, even in thin-walled material

• Sheet metal working in electrical, sanitary engineering, heating technologies, automotive, mechanical engineering, switching systems and aviation
• Non-ferrous metal, steel, stainless steel, thermoplastics, duroplastics, sheet metals up to 0.16” (8 ga.) thick
• Center, spot-drill, bore and debur - all in one operation