Detailed Product Description 

OEM HQ3 damond crown bit 
Impregnated/surface set crown drill bit 
NQ, HQ, HQ3, BQ, PQ diamond core drill bit 
Low price 

HQ3 Diamond Core Bit/diamond drill bit 
Surface-Set Diamond Bits are set with a singular layer of natural or synthetic diamond utilizing a hard matrix compound on the face of the bit. The diamond set design ensures sufficient overlap to prevent premature wear of the matrix. 

Size Available: 
Q Series: AQ, BQ, NQ, HQ, PQ/AQTK, BQTK, BQ3, NQ2, NQ3, NQTT, HQ3, HQTT, PQ3, PQTT 
T2 Series: T2 46, T2 56, T2 66, T2 76, T2 86, T2 101 
T6 Series: T6 76, T6 86, T6 101, T6 116, T6 131, T6 146, T6S 101 
T Series: T36, T46, T56, T66, T76, T86 
Z Series: Z46, Z56, Z66, Z76, Z86, Z101, Z116, Z131, Z146 
B Series: B36, B46, B56, B66, B76, B86, B101, B116, B131, B146 
WF Series: HWF, PWF, SWF, UWF, ZWF 
WT Series: RWT, EWT, AWT, BWT, NWT, HWT 
WM Series: EWM, AWM, BWM, NWM 
WG Series: EWG, AWG, BWG, NWG, HWG 
Others: NMLC, HMLC, LTK48, LTK60, BGM, NGM, ADBG, TBW, TNW, 
ATW, BTW, NTW, NXD3, AX, NX, NXC, AXT, T6H, 4 9/16, NWD4, 412F, SK6L146, 
TT46, TB56, TS116, CHD101 

Non-standard also can be made as your demand /drawings.