Challenge Style Paper Drill Bit 5/16" Diameter 3" Capacity CHT PTFE Coated Bindery 

Drill Bit For Challenge Style A Machines

Diameter: 5/16" x Depth Capacity: 3”

The CHT process, which is completely unique to Update Ltd, is a value added service offered to provide longer lasting parts. CHT, which stands for chemicals, heat and time, are three variables that, when combined, help to enhance the wear of your products, promising more effective and durable parts. CHT can come in a number of different coatings, such as Teflon, titanium nitride, chrome finish, and carbide sputter, which can be applied to equipment or products of various materials. CHT is most suited for drills, stitcher parts, perforators and slitters and cutting tools.

Not only does the CHT process help drills run cooler, but it helps prevent clogging as well. The core of paper removed or drilled out, commonly referred to as a chad or plug of paper, can get clogged inside the drill. The CHT coating lowers the coefficient of friction, thus helping in preventing a clog and speeds up the drilling process as well. 

Box Not Included

Please see the photos.

Payment Terms

  • Please submit payment within 3 days unless immediate payment is required.
  • Please contact us with any questions before bidding.
  • Please look at the photos before bidding or purchase.
International Buyers - Please Note: 

 Import duties, taxes, and charges are not included in the item price or shipping cost. 
These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be.

Thank you!

Evil Rooster Vintage
A6