Brass chuck holds 7 hollow point drills. Pressure exerted downward causes the bit to spin, drilling through papers and boards without snagging. Excellent for cutting holes in a variety of materials including papers (up to 24 sheets), leather, book board, etc. Price includes all the tips! Sizes are 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm
