R25 (1 “) bit thread Bits Diameter

Rock drilling tools include: drill bit,drill rod, shank and coupling. The piston of drill rig directly impacts the shank, makes impact power reach the bit through rod by the form of stress wave, so as to work on the breakage of rock. The primary breaking way is impacting while the secondary is cutting; both are with high drilling efficiency. Usually the land surface of the earth is covered with loose, unconsolidated material such as soil, clay, silt, sand, gravel and boulders, which varies in depth from a few centimeters to hundreds of meters.Use concentric system can drill this complex formation very well.The systems are available through the whole product range the smallest being for 114 mm (4 1/2″) casing and largest size available at the moment is for 1220 mm (48″) casing.

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Bits	Diameter		Buttons,mm			Angle	Flushing hole			Weight approx kg		Part No.
Bits	mm	in	Front No Size	Gauge No Size	Type	Angle	Front	Gauge		Weight approx kg		Part No.
Button bit
	33	1 5/16”	2×7	5×7		35º	1		1		0.40	1431-33R25-27/57-45-41
	35	1 3/8”	2×7	5×9		30º	1		1		0.50	1431-35R25-27/59-45-41
	37	1 29/64”	2×7	5×9		30º	1		1		0.60	1431-37R25-27/59-45-41
	38	1 1/2”	2×7	5×9		30º	1		1		0.60	1431-38R25-27/59-45-41
	41	1 5/8”	2×8	5×9		35º	1		1		0.60	1431-41R25-28/59-45-41
Cross bit
	33	1 5/16”	-	-	-	-	1		2		0.40	1221-33R25-12/8-42-23
	35	1 3/8”	-	-	-	-	1		2		0.50	1221-35R25-14/8-42-23
	38	1 1/2”	-	-	-	-	1		2		0.60	1221-38R25-14/8-42-23
Reaming bit, 6º taper
	64	2 1/2”	4×8	8×9		25º	-		-		0.90	1441-646-48/89-45-51
	76	3”	4×10	8×10		30º	-		-		1.30	1441-766-410/810-45-51
	89	3 1/2”	4×11	8×11		30º	-		-		1.70	1441-896-411/811-45-51
Pilot adapter, 6º taper,R25 threa
	26	1 1/32”	-	-	-	-	-		-		1.30	1442-26R25-15/8-45-23

Rods		Length		Diameter		Weight approx kg		Part No.
Rods		mm	Ft/in	mm	inch	Weight approx kg		Part No.
Drifter rod,R32-Hex25-R25
		2200	7＇25/8”	25	1”	8.9		22H25—R25/R32-2200-23
		2400	7＇10/2”	25	1”	9.7		22H25—R25/R32-2400-23
		2600	8＇63/8”	25	1”	10.5		22H25—R25/R32-2600-23
		2800	9＇21/4”	25	1”’	11.3		22H25—R25/R32-2800-23
		3090	10＇15/8”	25	1”	12.4		22H25—R25/R32-3090-23
		3700	12＇15/8”	25	1”’	14.9		22H25—R25/R32-3700-23
Coupling sleeve
	R32	150	5 7/8”	44	1 23/32”		1.0	31-R32-44-150-23

Rods		Length		Diameter		Weight approx kg		Part No.
Rods		mm	Ft/in	mm	inch	Weight approx kg		Part No.
Drifter rod,R32-Hex25-R25
		2200	7＇25/8”	25	1”	8.9		22H25—R25/R32-2200-23
		2400	7＇10/2”	25	1”	9.7		22H25—R25/R32-2400-23
		2600	8＇63/8”	25	1”	10.5		22H25—R25/R32-2600-23
		2800	9＇21/4”	25	1”’	11.3		22H25—R25/R32-2800-23
		3090	10＇15/8”	25	1”	12.4		22H25—R25/R32-3090-23
		3700	12＇15/8”	25	1”’	14.9		22H25—R25/R32-3700-23
Coupling sleeve
	R32	150	5 7/8”	44	1 23/32”		1.0	31-R32-44-150-23