7pcs Triangular Drill Bit Set 3/4/5/6/8/10/12mm HSS Multifunctional with Round Handle Hardware Kit for Ceramic Glass Marble Architecture Construction

Features: Sufficient quantity Each set includes 7 pieces drills of different sizes to meet your various of needs. Multi function Designed with precise spearhead shape to ensure that the drill bit will not slip during the work. The drill bit is of exquisite workmanship and fast cutting speed great for installing on the electronic grinders crane grinders hand drills etc. Easy storage Attached with a plastic box to store the drill bits tidily and orderly greatly avoid losing and easy to carry out. Superior material Made of premium high speed steel material high hardness and durability stable with long lifetime. Wide application Perfect for cutting the hard metal like ceramic glass marble porcelain wood metal plastic cement rock and so on. Specifications: Type: triangular drill bit Material: high speed steel Item Color: gray Size: 0.3*0.2*6cm/0.16*0.08*2.36inch; 0.4*0.3*6.5cm/0.16*0.12*2.55inch; 0.5*0.4*6.8cm/0.2*0.16*2.67inch; 0.6*0.5*7.2cm/0.24*0.2*2.83inch; 0.8*0.6*7.8cm/0.31*0.24*3.07inch; 1*0.7*8cm/0.39*0.28*3.14inch; 1.2*0.8*8.5cm/0.47*0.31*3.34inch(L*W*H) Weight: 120g/4.23oz