For de-burring the ends of cut wire. The kit includes 3 Swiss-made cup burs in the diameters 1.2, 1.8, and 2.7 mm. The pin vise in this kit has large free-wheeling wood head that makes it suitable for drilling, tapping, as a screwdriver, and as a wire rounding tool. The pin vise is also provided with a double-ended collet with a chucking range from 0 to 4 mm. Steel shank is knurled and chrome plated. Additional sizes of cup burs can be purchased (see related products below).