Features:
Made of diamond materials. high hardness, durable in use.
Drill bit set, high strength, corrosion resistance and oxidation resistance.
It is widely used in metals, agates, gems, pearls, pendants and pebbles.
Tipped drill bit, can be uses with the drills, simple to use.
Easy to install and disassemble, which can well improve your work performance

Specification:
Diamond Tipped Drill Bit Set Twist Drill Bits 10pcs/Set
Size: 0.8 / 1.0 / 1.2 / 1.5 / 1.8 / 2.0 / 2.5 / 3.0 / 3.5 / 4.0mm
The Length of Twist Drills: Approx. 75mm/3.0in
                                          Approx. 65mm/2.6in
                                          Approx. 60.5mm/2.4in
                                          Approx. 53mm/2.1in
                                          Approx. 46.5mm/1.8in
                                          Approx. 43mm/1.7in
                                          Approx. 38mm/1.5in
                                          Approx. 34mm/1.3in
                                          Approx. 30mm/1.2in
                                          Approx. 23.9mm/0.9in
Use Range: Metal, Agate, gemstones, pearls, pendants, Cobblestone

Package Includes:
1 x 10pcs/Set Diamond Tipped Drill Bit Set Twist Drill Bits

Note: Different material hardness, the effect is different
The color of Package in random