Help drill small holes in resin, wood, plastic, polymer clay, bead, pearl or other not too hard surface. Assist to make necklace, earing, bracelet, pendant, keychain, model, sculpture, doll etc.\ Make small job much easier. Note: Not fit for hard materials, like iron, steel, stone. Tight 3 Jaw Chuck: The hand pin vise features 3 jaw chuck, clamp the drills bits in 0.8-3 mm, Keep them upright and clip them really tightly, good for smooth drilling work, And it’s easy to tighten and loosen drill bits by rotating the vise head. Drill Bits Set: 10 sizes of steel drill bits for choosing, 0.8/1.0/1.2/1.5/1.8/2.0/2.2/2.5/2.8/3.0 mm. Material: Aluminum alloy Color: Silver