Extra Narrow, finely serrated tips - 183A: 40° angled tip and side cutting edges. - 183AE: straight long thin nose with wire stripping & gripping 1.5mm² - 2.5mm² - 4mm². Cutting edges for copper and hard steel wire to maximum specification of 1.6mm 160 kg/mm². High durability Carbon alloy steel, with induction hardened cutting edges. Bi-Material ergonomic grips resistant to chemical agents featuring: - Return spring - Tether ready point (Tether point adds 10mm to nominal length) Chrome finish for corrosion resistance