• Drill up to 13 different hole sizes with one bit.
• Balanced double flute eliminates chatter and vibration.
• Self starting tip for easier drilling: even on curved surfaces.
• Holes automatically deburred by the next cutting edge.
• 3 flats on shank prefent slippin in drill chuck.
• Cutting edges are resharpenable.
• No. of Steps 3 Size Range 1/4"-7/8"-1-1/8" Shank size 1/2" Overall Length 3"

• No. of Steps 6 Size Range 3/16"- 1/2" ( in 1/16ths) Shank size 1/4" Overall Length 3-1/4"
• Balanced double flute eliminates chatter and vibration.
• Self starting tip for easier drilling: even on curved surfaces.
• Holes automatically deburred by the next cutting edge.
• 3 flats on shank prevent slipping in drill chuck.
• Cutting edges are resharpenable.

Clarcorp Industrial Sales is your source for step drill bits made from Super High Speed Steel. Professional Quality ProBits^™   patented design offer great convenience, and quality, making them especially very popular in the professional/construction industry. ProBits step drill bits are constructed of high speed steel and are available in two finishes - Regular bright finish or Titanium Nitride (TiN) coated gold finish. Step drill bits are an ideal tool for sheet metal working in various sectors of industry; electrical, sanitary, heating, automotive, mechanical engineering, switching systems, and aviation. The tough and versatile ProBits are suitable for all standard materials: non-ferrous metal, special steels, thermoplastics and duroplastics as well as sheet metal up to 1/8" in thickness.

Features:

• No. of Steps 1 Size Range 1/2" Shank size 1/4" Overall Length 1-7/8".
•  Balanced double flute eliminates chatter and vibration.
• Self starting tip for easier drilling: even on curved surfaces. 
• 3 flats on shank prevent slipping in drill chuck. Cutting edges are resharpenable.

• Drill up to 13 different hole sizes with one bit.
  
• Balanced double flute eliminates chatter and vibration.
  
• Self starting tip for easier drilling: even on curved surfaces.
  
• Holes automatically deburred by the next cutting edge.
  
• 3 flats on shank prevent slipping in drill chuck.
  
• Cutting edges can be resharpened
  
• No. of Steps 13
• Size Range 1/8" - 1/2" (in 1/32nds)
• Shank size 1/4"
• Overall Length 3"

ProBit Step Drills-Super high speed steel-Professional quality 1/4" HEX POWER SHANK. 2 FLUTES. BRIGHT FINISH OR TIN COATED. Self Starting Tip eliminates walking and the need for centerpunching. Non-skid tip gives instant start even on curved surfaces. Made from Super HSS steel, heat treated for long tool life. 1/4" HEX POWER SHANK for instant loading into quick change adapter. TWO FLUTES - two cutting edges assure true concentricity. 1 per tube or card

ProBits patented design offer greater convenience and quality, making them especially very popular in the professional/construction industry.
ProBits are constructed of high speed steel and are available in two finishes - Regular bright finish or Titanium Nitride (TiN) coated gold finish. An ideal tool for sheet metal working in various sectors of industry; electrical, sanitary, heating, automotive, mechanical engineering, switching systems, and aviation.

The tough and versatile ProBits are suitable for all standard materials: non-ferrous metal, special steels, thermoplastics and duroplastics as well as sheet metal up to 1/8" in thickness.

Features:

• Drill  6 different hole sizes with one bit.
• Balanced double flute eliminates chatter and vibration.
• Self starting tip for easier drilling: even on curved surfaces.
• Holes automatically deburred by the next cutting edge.
• 3 flats on shank prevent slipping in drill chuck.
• Cutting edges can be resharpened
• No. of Steps 6
• Size Range 3/16" - 1/2"
• Shank size 1/4" Hex
• Overall Length 3-1/4"