Work Holding Devices Pairee group boasts of a diversified portfolio of companies including Jyothi Industries. Our Products Below are some of our standard and customized products. FCollets These products are made of high quality alloy steel which conforms to DlN Standards/Customer specifications, hardened and ground to give long life. R8 Collets These products are made of high quality alloy steel which conforms to DlN Standards/Customer specifications, hardened and ground to give long life. 5C Collets These products are made of high quality alloy steel which conforms to DlN Standards/Customer specifications, hardened and ground to give long life.