Quick Details:  Name: Tapered Shank paper drill bitsPlace of Origin: Beijing,Website:http://www.bjgraphic.net, China (Mainland)  Brand Name: Graphic  Material: High Carbon Steel, HSS  Use: Paper Drilling  Processing Method: Sharp cutting edge wax coated until use  Applications: Suitable for use on manual, semi-automatic or automatic machines  Features:  1. Available in 2 main styles to suit most popular drilling machines  2. Dimensions from 3.0mm to 10 mm  3. Standard HSS steel for paper, board or laminate applications  4. Drill bits manufactured from HSS steel  5. Both outside and inside edges polished for smooth surface  6. Sharp cutting edge wax coated until use  7. Suit a large range paper drill bit machines  8. Diameter of drill bit can be matched to required hole  9. Suitable for use on manual, semi-automatic or automatic machines  10. Single or multi-headed machines.Specifications: Drill DiameterBit LengthHolder Dia.Holder LengthOverall Length3.0mm30mm11mm28.5mm65mm3.5mm35mm11mm28.5mm70mm4.0mm40mm11mm28.5mm75mm4.5mm40mm11mm28.5mm75mm5.0mm50mm11mm28.5mm85mm6.0-10.0mm50mm11mm28.5mm85mmNotes: Special Sizes are available upon demands or drawings.