Cheap drill bit, Buy Quality bits for drill directly from China core bit Suppliers: Free shipping of 1pc 63*180*12mm wet drilling diamond Drill bits core bit for drilling on marble/granite/concrete/wall
Product specifications: Product Name: diamond drill bits Hole Diameter:63mm diameter, 180length,12mm segent height. Mounting connector:M22 Material Metal, Diamond Particles Color:Red/purple/green/black in random Weight:0.77kg Advantages: Military quality, seamless steel pipes, hot press segments, laser welded Application: Ideal for bricks/concrete wall, the ultimate hole saw for hard-to-cut materials. With Tiny diamond particles coated tip off