Round, smooth inside jaw contour on this series of grips is ideal for bare ACSR, AAC, and stranded copper cables. The smooth jaws grip with maximum contact and are less likely to damage conductors. 5 Sizes available. CAT. NO. 1656-20: ACSR, 4 – 1/0, .250″-/.398″ Dia., AAC 4-1/0, .231″-369″ dia., Stranded copper .20″ – .40″ Dia., Max safe load 4500 lbs. jaw length 4″. Aprox weight 3 lbs.CAT. NO. 1656-30: ACSR, 2 – 3/0, .325 – .502″ Dia., AAC, 1 – 4/0, .328″ – .522″ Dia., Stranded copper, .31’ – .53″ Dia., Max safe load 45oo lbs. jaw length 4 – 3/4″, Weight 3.75 lbs.CAT. NO. 1656-40: ACSR, 4/0 – 336.4 MCM, .563″ – .720″ Dia, AAC, 250 MCM – 397.5 MCM, .567″ – .724″ Dia., Stranded Copper, .53″ – .74″ Dia., Max safe load 8000 lbs., Weight 8.30 lbs.CAT. NO. 1656-50: ACSR, 397.5 MCM – 477 MCM, .743″ – .858″ Dia., AACm 450 MCM – 556.5 MCM, .769″ – .858″ Dia., Stranded Copper, .74″ – .86″ Dia., Max safe load 8000 lbs., Weight 8.30 lbs.CAT. NO. 1656-60: ACSR, 477 MCM – 636 MCM, .879″ – .953″ Dia., AAC, 600 MCM – 650 MCM, .891″ – .928″ Dia., Stranded Copper, .86″ – .96″ Dia., Max safe load 8000 lbs., Jaw length 5-1/2″, Weight 8.20 lbs.