uxcell 1mm Diamond Twist Drill Bits High Speed Steel HSS for Glass Sea Shells Stone Tiles 10 Pcs

Descriptions: Fits for drills, flex shafts, bench drill and hanging mill. Suitable for drilling holes on glass, shells, rocks, marbles, stones, etc. Note: Add the coolant can increase work efficiency and extend service life. Specifications: Color: Silver Tone Material: Diamond, High Speed Steel Drill Bit Diameter: 1mm / 0.04-inch Drill Bit Length: 11mm / 0.43-inch Shank Diameter: 0.7mm / 0.027-inch Total Length: 28mm / 1.1-inch Package Content: 10 x Diamond Twist Drill Bits