Diamond is the hardest material in nature, and therefore anything else can be cut or drilled with it. If you are cutting or drilling through very hard materials, such as Sapphire or Quartz.

Diamond core drill bits are perfect for drilling holes through hard materials such as these:

·Stone, gemstones, rock, pebbles, minerals

.Ceramic, porcelain, tiles

·Shell, antler, bone, fossil·Hard composite materials etc.

Meanwhile, diamond core drill bits can also be used for drilling holes of concrete, reinforced concrete, bridge, wall etc.

We, KEENTOOL offers different sizes of diamond core drill bits for drilling granite, marble, concrete and wall etc. With years of research and application of diamond core drill bits, we are pride of being able to offer high performance diamond core drill for different drilling use.

Main features of our diamond core drill bits:

1. Applicable for drilling of brick wall,concrete, reinforced concrete

2. Sizes of adaptor for threaded bit: 1/2 BSP M, 1 1/4"UNC F

3. High effciency, long life and no breaking of segments

Specifications of Diamond Core Drill Bits for Reinforced Concrete:
16 mm × 1 1/4" UNC	52 mm × 1 1/4" UNC	116 mm × 1 1/4" UNC
18 mm × 1 1/4" UNC	56 mm × 1 1/4" UNC	120 mm × 1 1/4" UNC
20 mm × 1 1/4" UNC	63 mm × 1 1/4" UNC	127 mm × 1 1/4" UNC
22 mm × 1 1/4" UNC	66 mm × 1 1/4" UNC	132 mm × 1 1/4" UNC
25 mm × 1 1/4" UNC	71 mm × 1 1/4" UNC	140 mm × 1 1/4" UNC
27 mm × 1 1/4" UNC	76 mm × 1 1/4" UNC	152 mm × 1 1/4" UNC
30 mm × 1 1/4" UNC	83 mm × 1 1/4" UNC	160 mm × 1 1/4" UNC
32 mm × 1 1/4" UNC	89 mm × 1 1/4" UNC	168 mm × 1 1/4" UNC
36 mm × 1 1/4" UNC	96 mm × 1 1/4" UNC	180 mm × 1 1/4" UNC
38 mm × 1 1/4" UNC	102 mm × 1 1/4" UNC	200 mm × 1 1/4" UNC
40 mm × 1 1/4" UNC	108 mm × 1 1/4" UNC	220 mm × 1 1/4" UNC
46 mm × 1 1/4" UNC	112 mm × 1 1/4" UNC	245 mm × 1 1/4" UNC