Open barrel contacts demand a proper double crimp: a B-type crimp on the conductor and a separate B-type crimp on the insulation support — pliers mangle them, generic crimpers approximate them.
The Sargent 1028-CT does them correctly, with five precision cavities dedicated across the medium wire range: two insulation crimp cavities (A: 18-14 AWG, B: 24-20 AWG) and three conductor crimp cavities (C: 16-14 AWG, D: 20-18 AWG, E: 24-22 AWG).

Close the tool twice per termination — once on the conductor wings, once on the insulation wings — and the result is the textbook B-crimp profile connector manufacturers actually specify.
The conductor crimp grips the strands for low resistance; the insulation crimp supports the jacket against vibration. Coverage spans 24-14 AWG (1.5 mm² and 2.5 mm²) — the range of automotive-style connector housings, control harnesses, and equipment interconnects.

Made in the USA by Sargent (Rostra Tools) and compliant with the US Berry Amendment — a genuine domestic-materials tool.
At 8 inches long, it's a solid bench and field crimper that Rostra's own channel lists at considerably more than our price. If you've been folding open barrels with needle-nose and hoping, this is the fix.

• Crimps conductor and insulation portions in separate dedicated cavities (close tool twice per termination)
• Insulation crimps: B-type, two cavities — A: 18-14 AWG, B: 24-20 AWG
• Conductor crimps: B-type, three cavities — C: 16-14 AWG, D: 20-18 AWG, E: 24-22 AWG
• Covers a wide variety of open barrel contacts in medium wire ranges
• Made in USA; Berry Amendment compliant (certificate available from Sargent)

• Model: Sargent (Rostra) 1028-CT
• Application: Open barrel contacts, medium wire range
• Wire Range: 24-14 AWG (1.5 mm² & 2.5 mm²)
• Crimp Type: B-type, conductor and insulation
• Length: 8" (20.3 cm)
• Weight: 1 lb 3 oz
• Origin: Made in USA