Surface-set Diamond Bits

Surface-set diamond bits are used in drilling harder formations where the available rotational speeds and bit loads are insufficient to use impregnated diamond bits due to drilling equipment limitations.

Size Available

Q Series: A,B,N,H,P/ATK,BTK,B3,N2,N3,NTT,H3,HTT,P3,PTT
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

Features

1. 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.
2. The diamond set design ensures sufficient overlap to prevent premature wear of the matrix.
3. Surface-Set diamond bits are primarily recommended for use in drilling relatively soft, abrasive, unconsolidated formations that are not effectively drilled by impregnated diamond bits.

Specification

Core Barrel Designation	Core Bit				Core Bit				Reaming Shell
	Outside Set Diameter				Inside Set Diameter				Set Diameter
	Maximum		Minimum		Maximum		Minimum		Maximum		Minimum
	Inches	mm	Inches	mm	Inches	mm	Inches	mm	Inches	mm	Inches	mm
NQ	2.97	75,44	2.96	75.19	1.88	47.75	1.87	47.5	2.985	75.82	2.975	75.57
HQ	3.77	95.76	3.755	95.38	2.505	63.63	2.495	63.38	3.79	96.27	3.775	95.89
PQ	4.815	122.3	4.795	121.8	3.35	85.09	3.34	84.84	4.835	120.81	4.82	122.43
BQ	2.35	59.69	2.34	59.44	1.438	36.52	1.428	36.27	2.365	60.07	2.355	59.82
AQ	1.88	47.75	1.87	47.5	1.067	27.1	1.057	26.85	1.895	48.13	1.885	47.88

Surface-set Diamond Bit

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