Adapter Plate D1-4 ER25 Collet Chuck Pt. 2

[tlfamm]

I haven't researched this exhaustively, but for my D1-5 spindle (6 pins) the cheapest known source of pins is to purchase an entire back plate from Shars, and either use the plate as is, or cannibalize its pins for a special shop-built plate:

D1-5 6" backplate $63.95 (US)
http://www.shars.com/products/view/979/L..._6quot_D15


D1-3 6" backplate $58.00 (US)
http://www.shars.com/products/view/977/L..._6quot_D13