TOUGH LOCK consumables family shown with contact tips, retaining head and nozzle

TOUGH LOCK contact tip shown from bottom at 45-degree angle

TOUGH LOCK retaining head shown from front

TOUGH LOCK retaining head shown from top at 45-degree angle

TOUGH LOCK retaining head shown from bottom

TOUGH LOCK retaining head shown from top

TOUGH LOCK retaining head shown from bottom at 45-degree angle

TOUGH LOCK Consumables

Part of our Common Consumables Platform™, our well-known and trusted TOUGH LOCK^® consumables can help to reduce your consumable costs and maintenance downtime.

TOUGH LOCK contact tips are manufactured from high-quality, high-conductivity copper using a mandrel-drawn process that controls tip tolerances. When mated with our TOUGH LOCK retaining heads, they produce lower contact tip temperatures.

Not currently using a Bernard^® MIG gun? You can still enjoy the benefits of TOUGH LOCK consumables by installing them on other brands of MIG guns by using our TOUGH LOCK conversion series.

TOUGH LOCK retaining heads with dual taper technology are manufactured with a tapered design at both ends that keep your consumables locked from contact tip to neck for improved weld consistency and to maximize heat dissipation, keeping your front end consumables running even cooler!

Learn more about how you can enjoy the benefits of dual taper technology for the same price as single taper TOUGH LOCK retaining heads.

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Overview
Compatibility
Contact Tips
Nozzles
Retaining Heads
Liners

Locking feature prevents contact tip and retaining head from overheating due to the loosening vibration often causes — cooler temperature reduces wear and extends consumable life
Greater surface area contact between the contact tip, retaining head and neck ensures better heat dissipation and guarantees positive electrical conductivity
Dual-lead thread design allows contact tips to be rotated 180° to a new wear position for extended contact tip life
Enjoy increased uptime due to less frequent consumable changes
TOUGH LOCK consumables are components of the Common Consumable Platform™, which allows for less inventory while maximizing flexibility and productivity across a variety of MIG welding applications

System Components

TOUGH LOCK Consumables

TOUGH LOCK contact tips
TOUGH LOCK retaining heads
Tregaskiss® nozzles

Product Compatibility

TOUGH LOCK consumables are compatible with the following:

TOUGH LOCK Standard Duty (SD) Contact Tips; Copper

403-14-23	for 0.023″ (0.6 mm) wire
403-14-30	for 0.030″ (0.8 mm) wire
403-14-35	for 0.035″ (0.9 mm) wire
403-14-1.0	for 1.0 mm wire
403-14-45	for 0.045″ (1.2 mm) wire

TOUGH LOCK Heavy Duty (HD) Contact Tips; Copper

403-20-30	for 0.030″ (0.8 mm) wire
403-20-35	for 0.035″ (0.9 mm) wire
403-20-1.0	for 1.0 mm wire
403-20-45	for 0.045″ (1.2 mm) wire
403-20-364	for 3/64″ (1.2 mm) wire
403-20-52	for 0.052″ (1.3 mm) wire
403-20-1.4	for 1.4 mm wire
403-20-116	for 1/16″ (1.6 mm) wire
403-20-1.8	for 1.8 mm wire
403-20-78	for 0.078″ (2.0 mm) wire
403-20-564	for 5/64″ (2.0 mm) wire
403-20-332	for 3/32″ (2.4 mm) wire

TOUGH LOCK Heavy Duty (HD) Tapered Contact Tips; Copper

403-21-30	for 0.030″ (0.8 mm) wire
403-21-35	for 0.035″ (0.9 mm) wire
403-21-1.0	for 1.0 mm wire
403-21-45	for 0.045″ (1.2 mm) wire

TOUGH LOCK Extended Life Heavy Duty (EHD) Contact Tips; Chrome Zirconium

403-27-30	for 0.030″ (0.8 mm) wire
403-27-35	for 0.035″ (0.9 mm) wire
403-27-1.0	for 1.0 mm wire
403-27-45	for 0.045″ (1.2 mm) wire
403-27-364	for 3/64″ (1.2 mm) wire

TOUGH LOCK Extra Heavy Duty (EXHD) Contact Tips; Copper

603-20-1.0	for 1.0 mm wire
603-20-45	for 0.045″ (1.2 mm) wire
603-20-364	for 3/64″ (1.2 mm) wire
603-20-52	for 0.052″ (1.3 mm) wire
603-20-1.4	for 1.4 mm wire
603-20-116	for 1/16″ (1.6 mm) wire
603-20-564	for 5/64″ (2.0 mm) wire
603-20-332	for 3/32″ (2.4 mm) wire
603-20-764	for 7/64″ (2.8 mm) wire
603-20-18	for 1/8″ (3.2 mm) wire

TOUGH LOCK Teach Tips

403-20-01	Adjustable teach tip
403-20-05	Teach tip 1/2″
403-20-062	Teach tip 5/8″
403-20-075	Teach tip 3/4″
403-20-10mm	Teach tip 10 mm
403-20-15mm	Teach tip 15 mm

Air-Cooled Nozzles (Slip-On); Light-Duty

151-1-38	3/8″ bore, 1/8″ tip recess, brass, long taper
151-1-50	1/2″ bore, 1/8″ tip recess, brass, short taper
151-50	1/2″ bore, flush tip, brass, short taper

Air-Cooled Nozzles (Slip-On); Standard Duty

401-4-38	3/8″ bore, flush tip, copper, long taper
401-40-38	3/8″ bore, 1/16″ tip recess, brass, long taper
401-44-50	1/2″ bore, 1/4″ stick out, brass, bottleneck
401-48-50	1/2″ bore, 1/8″ stick out, brass, bottleneck
401-42-50	1/2″ bore, 1/8″ tip recess, brass, bottleneck
401-4-50	1/2″ bore, 1/8″ tip recess, copper, short taper
401-44-62	5/8″ bore, 1/4″ stick out, copper, short taper
401-8-62	5/8″ bore, 1/8″ stick out, copper, bottleneck
401-4-62	5/8″ bore, 1/8″ tip recess, copper, short taper
401-4-75	3/4″ bore, 1/8″ tip recess, copper, straight bore

Air-Cooled Nozzles (Slip-On); Heavy Duty

401-6-50	1/2″ bore, 1/8″ tip recess, copper, short taper
401-87-56	9/16″ bore, 1/8″ tip recess, brass, long taper
401-49-62	5/8″ bore, 1/8″ stick out, copper, bottleneck
401-91-62	5/8″ bore, 1/8″ stick out, brass, short taper
401-81-62	5/8″ bore, 1/8″ stick out, copper, short taper
401-87-62	5/8″ bore, 1/8″ stick out, brass, short taper
401-49-62	5/8″ bore, 1/8″ stick out, copper, bottleneck
401-30-62	5/8″ bore, 1/8″ stick out, brass, bottleneck
401-48-62	5/8″ bore, flush tip, copper, bottleneck
401-88-62	5/8″ bore, flush tip, brass, long taper
401-51-62	5/8″ bore, flush tip, brass, bottleneck
401-71-62	5/8″ bore, 1/8″ tip recess, brass, short taper
401-72-62	5/8″ bore, 1/8″ tip recess, brass, short taper
401-6-62	5/8″ bore, 1/8″ tip recess, copper, short taper
401-50-62	5/8″ bore, 5 mm tip recess, copper, bottleneck
401-7-62	5/8″ bore, 1/4″ tip recess, brass, short taper
401-5-62	5/8″ bore, 1/4″ tip recess, copper, short taper
401-6-75	3/4″ bore, 1/8″ tip recess, copper, short taper
401-7-75	3/4″ bore, 1/8″ tip recess, brass, short taper
401-5-75	3/4″ bore, 1/4″ tip recess, copper, short taper
401-7-87	7/8″ bore, 1/4″ tip recess, brass, straight bore
401-10-87	7/8″ bore, 1/4″ tip recess, brass, straight bore

Air-Cooled Nozzles (Thread-On); Standard Duty

For use with TOUGH LOCK diffuser 404-52-25 or 404-53-25

401-42-38	3/8″ bore, 1/8″ tip recess, copper, short taper
401-47-51	1/2″ bore, 1/8″ tip recess, copper, short taper
401-18-62	5/8″ bore, 1/8″ stick out, copper, short taper
401-43-62	5/8″ bore, 1/8″ tip recess, copper, short taper

For use with Tregaskiss^® conventional diffuser 404-25 or 404-1-25, or TOUGH LOCK diffuser 404-15-25

401-16-50	1/2″ bore, 1/8″ stick out, copper, short taper
401-46-50	1/2″ bore, 1/4″ tip recess, copper, short taper
401-41-50	1/2″ bore, extended reach, brass, short taper

Air-Cooled Nozzles (Thread-On); Heavy Duty

For use with TOUGH LOCK diffuser 404-52-25 or 404-53-25

401-41-62	5/8″ bore, 1/8″ stick out, brass, long taper
401-30-62T	5/8″ bore, 1/8″ stick out, brass, bottleneck
401-14-62	5/8″ bore, 1/8″ tip recess, copper, short taper

Water-Cooled Nozzles; Standard Duty

For use with Bernard^® 450 amp T-Gun™ semi-automatic water-cooled MIG guns

451-6-50	1/2″ bore, 1/8″ tip recess, copper, short taper
451-5-62	5/8″ bore, 1/4″ tip recess, copper, short taper
451-6-62	5/8″ bore, 1/8″ tip recess, copper, short taper
451-8-62	5/8″ bore, 1/8″ stick out, copper, short taper
451-6-75	3/4″ bore, 1/8″ tip recess, copper, short taper

Water-Cooled Nozzles; Heavy Duty

For use with Bernard^® 450 amp T-Gun™ semi-automatic and Tregaskiss® 350 amp MW1 fixed automatic water-cooled MIG guns

451-1-62	5/8″ bore, 1/4″ tip recess, copper, short taper
451-61-62	5/8″ bore, flush tip, copper, short taper

For use with Bernard^® 600 amp T-Gun™ semi-automatic and Tregaskiss® 385 amp MW1 fixed automatic water-cooled MIG guns

601-5-62	5/8″ bore, 1/4″ tip recess, nickel-plated bronze, short taper
601-6-62	5/8″ bore, 1/8″ tip recess, nickel-plated bronze, short taper
601-5-75	3/4″ bore, 1/4″ tip recess, nickel-plated bronze, short taper
601-6-75	3/4″ bore, 1/8″ tip recess, nickel-plated bronze, short taper

601-5-75-3	Insulator for 601 Series Nozzle

Water-Cooled Nozzles; Heavy Duty

For use with Tregaskiss^® 600 amp robotic water-cooled MIG guns

650-6-62	5/8″ bore, 1/8″ tip recess, chrome, short taper
651-5-62	5/8″ bore, 1/4″ tip recess, chrome, short taper
651-6-62	5/8″ bore, 1/8″ tip recess, chrome, short taper
650-6-75	3/4″ bore, 1/8″ tip recess, chrome, short taper
651-5-75	3/4″ bore, 1/4″ tip recess, chrome, short taper
651-6-75	3/4″ bore, 1/8″ tip recess, chrome, short taper

TOUGH LOCK Retaining Heads; Single Taper

404-30-25	for robotic applications; heavy duty, qty: 25
404-30	for robotic applications; heavy duty, qty: 100
404-30-250	for robotic applications; heavy duty, qty: 250
404-14-25	for robotic applications; standard duty, qty: 25
404-14	for robotic applications; standard duty, qty: 100
404-20-25	for semi-automatic applications; heavy duty, qty: 25
404-20	for semi-automatic applications; heavy duty, qty: 100
404-20-250	for semi-automatic applications; heavy duty, qty: 250
404-14-25	for semi-automatic applications; standard duty, qty: 25
404-14	for semi-automatic applications; standard duty, qty: 100
404-38-25	for 600 amp water-cooled applications; diffuser, qty: 25
403-38	for 600 amp water-cooled applications; diffuser, qty: 100

TOUGH LOCK Retaining Heads; Dual Taper

404-32-25	for robotic applications; heavy duty, qty: 25
404-32	for robotic applications; heavy duty, qty: 100
404-32-250	for robotic applications; heavy duty, qty: 250
404-18-25	for robotic applications; standard duty, qty: 25
404-18	for robotic applications; standard duty, qty: 100
404-26-25	for semi-automatic applications; heavy duty, qty: 25
404-26	for semi-automatic applications; heavy duty, qty: 100
404-26-250	for semi-automatic applications; heavy duty, qty: 250
404-18-25	for semi-automatic applications; standard duty, qty: 25
404-18	for semi-automatic applications; standard duty, qty: 100

TOUGH LOCK Retaining Heads; Thread-On

For New Style Thread-On Nozzles

404-51-25	Single taper retaining head for robotic applications; heavy duty, qty: 25
404-52	Dual taper retaining head for robotic applications; heavy duty, qty: 10
404-52-25	Dual taper retaining head for robotic applications; heavy duty, qty: 25

Compatible Liners

Family of three QUICK LOAD liners with liner retainers — QUICK LOAD® Liners

Set of two Tregaskiss conventional liners for MIG welding guns — Liners for Aluminum Wire

Coiled conventional liner shown from top at 45-degree angle — Tregaskiss® Conventional Liners

Cutaway of a jump liner installed inside a MIG gun — Jump Liners

Family of color-coded Bernard conventional liners — Bernard® Conventional Liners

QUICK LOAD^® Liners

415-23-15Q	for 0.023″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-23-15
415-30-6Q	for 0.030″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-30-6
415-30-15Q	for 0.030″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-30-15
415-35-6Q	for 0.035″ – 0.045″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-35-6
415-35-10Q	for 0.035″ – 0.045″ wire, 10′ length; high carbon steel – round wound; replaces conventional liner 415-35-10
415-35-15Q	for 0.035″ – 0.045″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-35-15
415-35-25Q	for 0.035″ – 0.045″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-35-25
415-116-6Q	for 0.045″ – 1/16″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-116-6
415-116-10Q	for 0.045″ – 1/16″ wire, 10′ length; high carbon steel – round wound; replaces conventional liner 415-116-10
415-116-15Q	for 0.045″ – 1/16″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-116-15
415-116-25Q	for 0.045″ – 1/16″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-116-25
415-564-6Q	for 1/16″ – 5/64″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-564-6
415-564-15Q	for 1/16″ – 5/64″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-564-15
415-564-25Q	for 1/16″ – 5/64″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-564-25
415-332-6Q	for 0.078″ – 3/32″ wire, 6′ length; high carbon steel – round wound; replaces conventional liner 415-332-6
415-332-15Q	for 0.078″ – 3/32″ wire, 15′ length; high carbon steel – round wound; replaces conventional liner 415-332-15
415-332-25Q	for 0.078″ – 3/32″ wire, 25′ length; high carbon steel – round wound; replaces conventional liner 415-332-25

QUICK LOAD Liner Retainers

Required for initial QUICK LOAD liner installation only (sold separately)

415-24*	for 0.078″ – 3/32″ wire
415-26*	for 0.030″ – 5/64″ wire
415-37**	for 0.030″ – 5/64″ wire

*Compatible with Tregaskiss® robotic and automatic MIG guns and Bernard® BTB and TGX® semi-automatic air-cooled MIG guns
**Compatible with most Tweco® MIG guns

Tregaskiss^® Conventional Liners

For use with Tregaskiss robotic and automatic MIG guns

415-23-15	for 0.023″ wire, 15′ length; high carbon steel – round wound
415-30-6	for 0.030″ wire, 6′ length; high carbon steel – round wound
415-30-15	for 0.030″ wire, 15′ length; high carbon steel – round wound
415-35-6	for 0.035″ – 0.045″ wire, 6′ length; high carbon steel – round wound
415-35-10	for 0.035″ – 0.045″ wire, 10′ length; high carbon steel – round wound
415-35-15	for 0.035″ – 0.045″ wire, 15′ length; high carbon steel – round wound
415-35-25	for 0.035″ – 0.045″ wire, 25′ length; high carbon steel – round wound
415-116-6	for 0.045″ – 1/16″ wire, 6′ length; high carbon steel – round wound
415-116-10	for 0.045″ – 1/16″ wire, 10′ length; high carbon steel – round wound
415-116-15	for 0.045″ – 1/16″ wire, 15′ length; high carbon steel – round wound
415-116-25	for 0.045″ – 1/16″ wire, 25′ length; high carbon steel – round wound
415-564-6	for 1/16″ – 5/64″ wire, 6′ length; high carbon steel – round wound
415-564-15	for 1/16″ – 5/64″ wire, 15′ length; high carbon steel – round wound
415-564-25	for 1/16″ – 5/64″ wire, 25′ length; high carbon steel – round wound
415-332-6	for 0.078″ – 3/32″ wire, 6′ length; high carbon steel – round wound
415-332-15	for 0.078″ – 3/32″ wire, 15′ length; high carbon steel – round wound
415-332-25	for 0.078″ – 3/32″ wire, 25′ length; high carbon steel – round wound

Bernard^® Conventional Liners

For use with Bernard BTB and all legacy Q-Gun™, S-Gun™ and T-Gun™ semi-automatic air-cooled MIG guns

	Liner Color:
L1A-15	Yellow	for 0.023″-0.030″ (0.6-0.8 mm) wire, 15 ft (4.57 m)
L1A-25	Yellow	for 0.023″-0.030″ (0.6-0.8 mm) wire, 25 ft (7.62 m)
L2A-15	Green	for 0.030″-0.035″ (0.8-0.9 mm) wire, 15 ft (4.57 m)
L2A-25	Green	for 0.030″-0.035″ (0.8-0.9 mm) wire, 25 ft (7.62 m)
L3A-15*	White	for 0.035″-0.045″ (0.9-1.2 mm) wire, 15 ft (4.57 m)
L3A-25*	White	for 0.035″-0.045″ (0.9-1.2 mm) wire, 25 ft (7.62 m)
L4A-15**	Red	for 0.045″-1/16″ (1.2-1.6 mm) wire, 15 ft (4.57 m)
L4A-25**	Red	for 0.045″-1/16″ (1.2-1.6 mm) wire, 25 ft (7.62 m)
L6A-15	Blue	for 5/64″ (2.0 mm) wire, 15 ft (4.57 m)
L6A-25	Blue	for 5/64″ (2.0 mm) wire, 25 ft (7.62 m)
L7A-15	Grey	for 3/32″ (2.4 mm) wire, 15 ft (4.57 m)
L7A-25	Grey	for 3/32″ (2.4 mm) wire, 25 ft (7.62 m)
L8A-15	Black	for 7/64″-1/8″ (2.8-3.2 mm) wire, 15 ft (4.57 m)
L8A-25	Black	for 7/64″-1/8″ (2.8-3.2 mm) wire, 25 ft (7.62 m)

*Standard liner for guns using 0.035″ and 0.045″ wire
**Standard liner for guns using 1/16″ wire

Liners for Aluminum Wire

415-45-02	Polymer liner for 0.035″ – 3/64″ aluminum wire, 10′ length
415-45-03	Polymer liner for 0.035″ – 3/64″ aluminum wire, 15′ length
415-35-2	Steel wrapped nylon liner for 0.035″ – 0.045″ aluminum wire, 15′ length
415-45-04	Polymer liner for 0.035″ – 3/32″ aluminum wire, 25′ length
415-116-2	Steel wrapped nylon liner for 0.045″ – 1/16″ aluminum wire, 15′ length
415-116-22	Polymer liner for 3/64″ – 1/16″ aluminum wire, 10′ length
415-116-23	Polymer liner for 3/64″ – 1/16″ aluminum wire, 15′ length
415-116-26	Polymer liner for 3/64″ – 1/16″ aluminum wire, 25′ length

Jump Liners

Not recommended for use with QUICK LOAD liners

QJL-2330	Jump Liner for 0.023″ (0.6 mm) – 0.030″ (0.8 mm) wire; 14″ length
QJL-2330-XL	Jump Liner for 0.023″ (0.6 mm) – 0.030″ (0.8 mm) wire; 27″ length
QJL-3545	Jump Liner for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 14″ length
QJL-3545-XL	Jump Liner for 0.035″ (0.9 mm) – 0.045″ (1.2 mm) wire; 27″ length
QJL-116	Jump Liner for 1/16″ (1.6 mm) wire; 14″ length
QJL-116-XL	Jump Liner for 1/16″ (1.6 mm) wire; 27″ length
QJLH-116	Heavy Duty (HD) Jump Liner for 1/16″ (1/6 mm) wire; 14″ length
QJLN-364	Nylon Jump Liner for 0.035″ (0.9 mm) – 3/64″ (1.2 mm) aluminum wire; 14″ length
QJLN-116	Nylon Jump Liner for 1/16″ (1.6 mm) aluminum wire; 14″ length

Bernard

Tregaskiss

TOUGH LOCK Consumables