1-855-MIGWELD (644-9353)
Sign In

Conversion Series Consumables

Product shot of AccuLock S nozzle, contact tip, gas diffuser.

Not currently using a Bernard® or Tregaskiss® MIG gun?

You can still experience immediate benefits from AccuLock®, Centerfire™*, TOUGH LOCK® or Quik Tip™ consumables using competitive conversion parts. Enhance performance and standardize consumables for all your gun brands to minimize inventory management costs.

Gun Manufacturer Gun Model Nozzle/Diffuser Style Adaptor Insulator Diffuser Contact Tips Nozzle
Bernard BTB Semi-Automatic MIG Gun Small, Thread-On Not Required 4623R DS-A1-C See note below* See note below*
Small, Slip-On DS-A2-C
Large, Thread-On Not Required D-A1-C
Large, Slip-On D-A2-C
Binzel ALPHA 2 Small, Thread-On Not Required 10012 DS-A1B2 See note below* See note below*
Binzel ALPHA 3 Large, Thread-On Not Required 4623R D-A1B3 See note below* See note below*
Tweco No. 1, No. 2 Small, Thread-On 1380030 10012 DS-A1-C See note below* See note below*
Small, Slip-On DS-A2-C
Large, Thread-On 1380030 D-A1-C
Large, Slip-On D-A2-C
Tweco No. 3, No. 4, Tuff-n-Lite,
Supra XT (HD consumables),
Spray Master 450		 Small, Thread-On Not Required 10012 DS-A1-C See note below* See note below*
Small, Slip-On DS-A2-C
Large, Thread-On Not Required D-A1-C
Large, Slip-On D-A2-C
Tweco No. 5 Large, Thread-On Not Required 4623R D-A1T-5 See note below* See note below*
Lincoln Magnum 250 Small, Thread-On 1380030 10012 DS-A1-C See note below* See note below*
Small, Slip-On DS-A2-C
Large, Thread-On 1380030 D-A1-C
Large, Slip-On D-A2-C
Lincoln Magnum 300, Magnum 400 Small, Thread-On Not Required 10012 DS-A1-C See note below* See note below*
Small, Slip-On DS-A2-C
Large, Thread-On Not Required D-A1-C
Large, Slip-On D-A2-C
Lincoln Magnum Pro 300 Large, Thread-On Not Required 4623R D-A1LP3 See note below* See note below*

*Choose contact tips and nozzles from AccuLock S spec sheet.

Note: Use small nozzles with small diffusers and large nozzles with large diffusers. For more semi-automatic options, visit the AccuLock R Conversion Series section.

Gun Manufacturer Gun Model Nozzle/Diffuser Style Adaptor Insulator Diffuser Contact Tips Nozzle
ATTC Lightning Robo Thread-On Not Required Not Required D-ANTH-CMI See note below* See note below*
Slip-On D-ANSH-CMI
Binzel ABIROB A500 Thread-On Not Required 404-65-3 D-ANTH-BA5 See note below* See note below*
Binzel W500 Thread-On Not Required Not Required D-ANTH-BW5 See note below* See note below*
CMI Kool Run Robo Thread-On Not Required Not Required D-ANTH-CMI See note below* See note below*
Slip-On D-ANSH-CMI
Fronius TPSi MTB 400i G R (MTW),
MTB 400d		 Thread-On Not Required Not Required D-ATTH-F4B See note below* See note below*
Fronius TPSi MTB 500i W R (MTW) Thread-On Not Required Not Required D-ATTH-F4C See note below* See note below*
Lincoln Magnum Pro Water Cooled Thread-On Not Required Not Required D-ANTH-LWC See note below* See note below*
Lincoln Magnum Pro 250L Thread-On Not Required 402-28 D-ATTH-LMP See note below* See note below*
Slip-On Not Required D-ATSH-LMP
Lincoln Magnum Pro Curve 200, 300,
400		 Thread-On Not Required 402-28 D-ATTH-LMP See note below* See note below*
Slip-On Not Required D-ATSH-LMP
Lincoln Magnum Pro Curve HDE 250,
350, 450, 550		 Thread-On Not Required 402-28 D-ATTH-LMP See note below* See note below*
Slip-On Not Required D-ATSH-LMP
Lincoln Magnum Pro 550 Thread-On Not Required 402-28 D-ATTH-LMP See note below* See note below*
Slip-On Not Required D-ATSH-LMP
Lincoln Magnum Pro 550 Robotic
Welding Torch		 Thread-On Not Required 402-28 D-ATTH-LMP See note below* See note below*
Slip-On Not Required D-ATSH-LMP
SKS Power Joint Thread-On Not Required Not Required D-ANTH-CMI See note below* See note below*
Slip-On D-ANSH-CMI

*Choose contact tips and nozzles from AccuLock R spec sheet.

Gun Manufacturer Gun Model Nozzle/Diffuser Style Adaptor Insulator Diffuser Contact Tips Nozzle
Binzel ALPHA 3, ALPHA 3 Automatic Small, Thread-On Not Required 4323R DS-1B3 See note below* See note below*
Large, Thread-On Not Required 4323R D-1B4
Lincoln Magnum 250 Small, Thread-On 1380005 4323R DS-1 See note below* See note below*
Lincoln Magnum 300, 400 Small, Thread-On Not Required 4323R DS-1T See note below* See note below*
Large, Thread-On Not Required 4423R D-1T
Lincoln Magnum Pro 300, Pro 400 Large, Thread-On Not Required 4323R D-1LP3 See note below* See note below*
Miller XR Edge Small, Thread-On 1380018 4323R DS-1 See note below* See note below*
Large, Thread-On 1380018 10012 D-1
Miller XR30A, XR-1, Roughneck, Python Small, Thread-On Not Required 4323R DS-1 See note below* See note below*
Large, Thread-On Not Required 10012 D-1
Miller Aluma-Pro Small, Thread-On Not Required 4323R DS-1AP See note below* See note below*
Large, Thread-On Not Required 10012 D-1AP
Tweco No. 3, No. 4, Tuff-n-Lite,
Supra XT (HD consumables)		 Small, Thread-On Not Required 4323R DS-1T See note below* See note below*
Large, Thread-On Not Required 4423R D-1T
Tweco Spraymaster 450 Large, Thread-On Not Required 4423R D-1T See note below* See note below*
Tweco ELC 250, ELC 350,
Spraymaster 250,
Spraymaster 350		 Small, Thread-On 1380012 4323R DS-1 See note below* See note below*
Large, Thread-On 1380012 10012 D-1
Tweco ELC 450, EL 450,
Supra XT (EL consumables)		 Large, Thread-On 1380017 10012 D-1 See note below* See note below*

*Choose contact tips and nozzles from Centerfire spec sheet.

Conversion Consumables Installation

  1. Install conversion adaptor (if required).
  2. Install insulator cap over conversion adapter.
  3. Proceed with Centerfire (or Centerfire HD series) installation.

*Available for semi-automatic welding applications only.

Gun Manufacturer Gun Model Gun Neck Nozzle/Diffuser Style Adaptor Insulator Diffuser Contact Tips Nozzle
Fronius AL4000 / AW5000 –
TPSi MTB 500i W R (MTW)		 MTB 400i W R Thread-On Not Required Not Required 404-74 See note below* See note below*
Lincoln Magnum 300, 400 KP1928, KP1929, KP1941 Thread-On Not Required 4423R 404-20 See note below* See note below*
Lincoln Magnum Pro – Thread-On Not Required 402-28 404-75-25 See note below* See note below*
Slip-On 404-73-25
Tweco No. 3 63J-60 Thread-On Not Required 4423R 404-20 See note below* See note below*
Tweco No. 4 64J-60 Thread-On Not Required 4423R 404-20 See note below* See note below*
Tweco Spray Master 350 MS63-60 Thread-On Not Required 4423R 404-20 See note below* See note below*
Tweco Spray Master 450 MS64H-60 Thread-On Not Required 4423R 404-20 See note below* See note below*
Tweco WeldSkill 400 64A-60 Thread-On Not Required 4423R 404-20 See note below* See note below*

*Choose contact tips and nozzles from TOUGH LOCK spec sheet.

Gun Manufacturer Gun Model Nozzle/Diffuser Style Adaptor Insulator Diffuser Contact Tips Nozzle
Lincoln Magnum 250 Thread-On 1380005 10012 D118Q, D114Q See note below* N1C12Q, N1C58Q,
N1C34Q, N1C34HQ,
N1C58HQ
Slip-On D118 N1C12, N1C58,
N1C34HD, N1C58HD
Tweco ELC 250, ELC 350,
Spraymaster 250,
Spraymaster 350		 Thread-On 1380012 10012 D118Q, D114Q See note below* N1C12Q, N1C58Q,
N1C34Q, N1C34HQ,
N1C58HQ
Slip-On D118 N1C12, N1C58,
N1C34HD, N1C58HD
Tweco ELC 450, EL 450, Supra
XT (EL consumables)		 Thread-On 1380017 10012 D118Q, D114Q See note below* N1C12Q, N1C58Q,
N1C34Q, N1C34HQ,
N1C58HQ
Slip-On D118 N1C12, N1C58,
N1C34HD, N1C58HD

*Choose contact tips from Quik Tip spec sheet.

Conversion Consumables Installation

  1. Install conversion adaptor (if required).
  2. Install insulator cap over conversion adaptor.
  3. Trim liner to correct dimension for the diffuser being used.
  4. Torque diffuser onto the neck to approximately 12 ft-lbs.
  5. Insert contact tip into the diffuser and lock into position with a clockwise motion.
  6. Thread nozzle onto the diffuser and tighten firmly by hand.

    Copyright 2026 Tregaskiss | All Rights Reserved

    As manufacturers of semi-automatic, fixed automatic and robotic MIG guns and consumables, Tregaskiss and Bernard have earned a reputation as an experienced, dependable partner to its customers in the automotive, construction and fabrication, heavy equipment, ship, rail, general manufacturing, commercial truck and trailer, and oil and gas industries. Tregaskiss and Bernard offer air-cooled semi-automatic, fixed automatic and robotic MIG guns, water-cooled semi-automatic, fixed automatic and robotic MIG guns, reamers, nozzle cleaning stations, anti-spatter liquid, wire cutters, anti-spatter sprayers, clutches, welding consumables, nozzles, MIG welding tips, and MIG welding torches.