This is a 3-7/8" forstner bit. These bits will cut nice clean holes using the outer rim. Keep your rpm a little lower so they don't overheat and burn. They are very good at cutting at angles in a straight line. The cutting edge is ground in the multi spur style and the overall length is 6-1/4". The shank is 1/2 inch. 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.