Carbide tipped tool bits, Carbide brazed tools, Turning tools. DIN4978-SIO3 We manufacture high quality of Carbide Tipped Tool Bits, which are strictly accord to DIN,ISO or ANSI. DIN&ISO standard include the follows: -DIN4971-ISO1 -DIN4972-ISO2 -DIN4978-ISO3 -DIN4976-ISO4 -DIN4977-ISO5 -DIN4980-ISO6 -DIN4981-ISO7 -DIN4973-ISO8 -DIN4974-ISO9 -DIN4975-ISO10 -DIN282-ISO12 -DIN283-ISO13 -DIN263-ISO11 Meanwhile We can also produce according to your drawings. For more information, please kindly visit our website or by e-mail, by phone or by fax. K10/20 P25/30 Size Order No. Order No. 8x8x14x125mm 4973-0001 4973-001 10x10x18x150mm 4973-0003 4973-003 12x12x21x180mm 4973-0005 4973-005 16x16x27x210mm 4973-0007 4973-007 20x20x34x250mm 4973-0009 4973-009 25x25x43x300mm 4973-00011 4973-0011 32x32x52x355mm 4973-00013 4973-0013