Inquiry (采购产品): Parts/R8to Jacobs Chuck 4JT Yes I have a Jet Drilling and Mill Machine and the part that goes in the machine is a R8 look if it has a key way and the Jacobs Chuck I bought has 1/8"-3/4" 3-19 MM 4JT and 18N The part I need is a R8 - 4JT the end of the 4JT looks if its about 1" to a taper could you help me on this. Thanks Dickie Denney VP Ph.770-460-5155 or Fax 770-460-5079 **** Hidden Message ***** Dickie Denney 30214 Company: Peachtree Mechanical,Inc E-mail: ddenney@peachtreemechanical.com **** Hidden Message ***** ddenney@peachtreemechanical.com