On account of the large chip removal space, these drill bits are capable of removing chips quickly and easily when in the act of drilling, and with the ten different sizes of specifications, this set can meet your different working needs. compatibleged from the choice material, each drill bit of this set has high toughness and excellent corrosion resistance, which is not easy to break and can have long service life. These twist drill bits are made of high speed steel, which is anti-rust and sturdy. The length of this set is 8.5cm, the width is 4.5cm and the height is 0.5cm. This set is suitable compatible craft making, jewelry, souvenir making, etc. Item Name: Twist Drill Bits Material: High Speed Steel Specification: 0.8, 1.0, 1.2, 1.8, 2.0, 2.2, 2.5, 2.8, 3.0 Size Details: 8.5cm x 4.5cm x 0.5cm/3.35" x 1.77" x 0.2" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Tip: When you are about to drill, you need to switch to the other side to drill. Once pierced, it is easy to break when coming out. Package Includes: 1 Set of Mini Twist Drill Bits (10Pcs)