This is the return spring assembly for the smaller drill press'. The OD is 42mm 1-5/8, height is 15mm 5/8" and the center hole is 11mm, 7/16". When in doubt about a size use the metric as being more accurate. There are 3 locating notches that are 7mm wide and 5mm deep. Shipping on this item is free via USPS or UPS. I do combine shipping wherever possible. I do ship internationally. Just email me and I will quote shipping to your country. Please note the countries that I do not ship to.