3 New Pin Vises. Sliding Pin Vise. This is a new sliding pin vise. This can be used to hold drill bits, burs and files. It measures approximately 4 3/16" (106 mm). Single Mouth Pin Vise. This is a new single mouth pin vise. This can be used to hold drill bits, burs and files. It measures approximately 4 3/16" (106 mm). Sliding Pin Vise. This is a new sliding pin vise. This can be used to hold drill bits, burs and files. It measures approximately 4 3/16" (106 mm). We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.