Welding Contact Tips | McMaster-Carr

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MIG Gun Contact Tips

Attach these tips to MIG guns to guide welding wire and electric current to the weld site.

Tapered Tip—Tapered tips are good for welding on edges and in tight spaces, such as corners.

	For Mfr. Model No.	Choose a Wire Diameter	Pkg. Qty.		Pkg.
Standard Tip



	Bernard	EZ Feed 200, EZ Feed 300, EZ Feed 350, EZ Feed 400	0.030" , 0.035"	10	00000000	000000


	Hobart Miller	Trek 180 M-10, M-15, M-25, M-40, M-100, M-150	0.023"/0.025" , 0.030" , 0.035" , 0.045"	10	000000000	00000
	Lincoln Tweco	Magnum 100L Mini No. 1, No. 1	0.023"/0.025" , 0.030" , 0.035"	10	000000000	00000
	Lincoln Tweco	Magnum 200, Magnum 250L, Magnum 300, Magnum 400 No. 2, No. 3, No. 4	0.023"/0.025" , 0.030" , 0.035" , 0.040" , 0.045" , 0.052" , 0.063"	10	000000000	00000
	Miller	MDX 100, MDX 250	0.030" , 0.035"	10	00000000	00000
	Miller	Spoolmatic, XR Pistol	0.030" , 0.035"	10	00000000	00000
	Tregaskiss	T30, T40	0.030" , 0.035" , 0.045"	10	000000000	00000
	Tweco	Fusion	0.023"/0.025" , 0.030" , 0.035" , 0.040" , 0.045"	10	000000000	00000
	Tweco	Fusion Pro 7W	0.035"	10	000000000	00000
	Tweco	Mini No. 1, No. 1	0.040"	10	000000000	00000
	Tweco	Mini No. 1, No. 1	0.045"	10	00000000	00000


	Tweco	Spray Master 250	0.030" , 0.035"	10	00000000	00000
	Tweco	Velocity2 Spray Master 250, 350	0.030" , 0.035"	10	00000000	00000


	Tapered Tip



			Hobart Miller	Trek 180 M-10, M-15, M-25, M-40, M-100, M-150	0.035" , 0.045"	10	000000000	00000


			Lincoln	Magnum Pro 100SG	0.030" , 0.035"	5	00000000	0000
			Lincoln Tweco	Magnum 100L Mini No. 1, No. 1	0.025" , 0.030" , 0.035" , 0.045"	10	000000000	00000
			Lincoln Tweco	Magnum 200, Magnum 250L, Magnum 300, Magnum 400 No. 2, No. 3, No. 4	0.025" , 0.030" , 0.035" , 0.045"	10	000000000	00000

MIG Gun Gas Diffusers

Conduct electricity to your contact tip and evenly distribute shielding gas for high-quality welds. These diffusers reduce turbulence so the gas stays where you need it, which shields the weld and keeps it strong by preventing oxidation and pitting.

For Mfr.	For Mfr. Model No.	Material	Lg.	Each
Bernard	EZ Feed 200, EZ Feed 300, EZ Feed 350, EZ Feed 400	Brass	2 1/16"	000000
Lincoln	Magnum Pro 100L, Magnum Pro 100SG	Copper	1 1/2"	00000
Lincoln Tweco	Magnum 200, Magnum 250L No. 2	Brass	2"	00000
Lincoln Tweco	Magnum 300, Magnum 400 No. 3, No. 4	Brass	1 1/4"	0000
Miller	MDX 100	Brass	1 3/4"	00000
Miller	MDX 250	Brass	2"	00000
Miller	Spoolmatic, XR Pistol	Brass	2 1/8"	00000
Tregaskiss	T30, T40	Brass	1 1/4"	00000
Tweco	Fusion Pro 7W	Thermoset	1 1/8"	0000
Tweco	Mini No. 1	Brass	1 23/32"	0000

MIG Gun Nozzles

Direct shielding gas towards welds and protect contact tips from molten metal.

Recessed Nozzle—Recessed nozzles are the most common and work well in most welding applications. They let your wire stick out _1/2”-_3/4” from the contact tip, so the tip is away from the high heat of the arc and lasts longer. When your wire sticks out, there is also less of a chance it will melt and fuse to the contact tip.

Tapered Nozzle—Tapered nozzles are good for welding in tight spaces, such as corners, and on edges.

Flush Nozzle—Flush nozzles let your wire stick out _1/4”-_1/2” from the contact tip, so the tip is close to your workpiece. These nozzles are good for welding thin materials under low voltages, decreasing the risk of burning through your workpiece.

	For Manufacturer Model Number	Bore Size		Each
Recessed Nozzle



	Lincoln	Magnum 200, Magnum 250L	1/2"	00000000	00000


	Lincoln	Magnum 300, Magnum 400	3/4"	00000000	00000
	Lincoln Tweco	Magnum 100L Mini No. 1, No. 1	3/8"	000000000	00000
	Lincoln Tweco	Magnum 100L Mini No. 1, No. 1	1/2"	000000000	00000
	Lincoln Tweco	Magnum 100L Mini No. 1, No. 1	5/8"	000000000	00000
	Lincoln Tweco	Magnum 200, Magnum 250L No. 2	1/2"	000000000	0000
	Lincoln Tweco	Magnum 200, Magnum 250L No. 2	5/8"	000000000	0000
	Lincoln Tweco	Magnum 300, Magnum 400 No. 3, No. 4	1/2"	000000000	00000
	Lincoln Tweco	Magnum 300, Magnum 400 No. 3, No. 4	5/8"	000000000	00000
	Miller	M-25, M-40	1/2"	000000000	00000
	Miller	M-25, M-40	5/8"	000000000	00000


	Tweco	Fusion	3/8"	000000000	00000
	Tweco	Fusion	1/2"	000000000	00000
	Tweco	Fusion	5/8"	000000000	00000
	Tweco	Fusion	3/4"	000000000	00000
	Tweco	No. 3, No. 4	1/2"	000000000	0000
	Tweco	No. 3, No. 4	5/8"	000000000	0000
	Tweco	No. 3, No. 4	3/4"	00000000	0000
	Tweco	Spray Master 250	1/2"	000000000	00000
	Tweco	Velocity2 Spray Master 250, Velocity2 Spray Master 350	1/2"	00000000	00000


	Tapered Nozzle



			Bernard	200, 300, Q150	1/2"	000000000	00000


			Miller	M-10, M-15, M-100, M-150	3/8"	00000000	00000
			Miller	M-25, M-40	3/8"	00000000	00000
			Miller	Spoolmatic, XR Pistol	1/2"	00000000	00000


			Flush Nozzle



					Bernard	200, 300, Q150	5/8"	000000000	00000


					Miller	M-25, M-40	1/2"	00000000	00000
					Miller	M-25, M-40	5/8"	00000000	00000
					Miller	MDX 100	1/2"	00000000	00000
					Miller	MDX 250	1/2"	00000000	00000
					Miller Hobart	M-10, M-15, M-100, M-150 Trek 180	1/2"	000000000	00000
					Tweco	Fusion	1/2"	00000000	00000
					Tweco	Fusion Pro 7W	5/8"	00000000	0000
					Tweco	Velocity2 Spray Master 250, Velocity2 Spray Master 350	1/2"	00000000	00000