Extension Rods / MM Rods

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Website: http://rock-drillingtool.com/1-3-3-extension-rods-mm-rods.html

Top hammer drilling tools

This extension rod is made with a large diameter. It features excellent holing performance and can be used with large hydraulic drilling jumbo. That’s why this drilling rod is applicable for underground mining and infrastructure construction.

Extension Rod	L		D		Thread	Product Code	Weight Kg
Extension Rod	mm	Foot	mm	Inch	Thread	Product Code	Weight Kg
	915	3	32	1 1/4	R32	280-3209-5454	4.8
	1220	4	32	1 1/4	R32	280-3212-5454	6.5
	915	3	32	1 1/4	R32	290-3209-5454	5.5
	1220	4	32	1 1/4	R32	290-3212-5454	7.3
	1525	5	32	1 1/4	R32	290-3215-5454	9
	1830	6	32	1 1/4	R32	290-3218-5454	10.5
	1220	4	46	1 3/4	R32	200-4612-5454	10
	1525	5	46	1 3/4	R32	200-4615-5454	12.5
	1830	6	46	1 3/4	R32	200-4618-5454	14.2

Extension Rod	L		D		Thread	Product Code	Weight Kg
Extension Rod	mm	Foot	mm	Inch	Thread	Product Code	Weight Kg
	1220	4	39	1 1/2	T38	280-3912-7676	10
	1220	5	39	1 1/2	T38	280-3915-7676	12.4
	1525	6	39	1 1/2	T38	280-3918-7676	14.9

Extension Rod	L		D		Thread	Product Code	Weight Kg
Extension Rod	mm	Foot	mm	Inch	Thread	Product Code	Weight Kg
	1525	5	46	1 3/4	T45	280-4615-7777	16.2
	1838	6	46	1 3/4	T45	280-4618-7777	19.5

Extension Rod	L		D		Thread	Product Code	Weight Kg
	mm	Foot	mm	Inch
	1830	6	52	2	T51	280-5218-7878	25.3