Typical Problems Are Due to Material and Purity
Most breakage occurs due to impurities in the material. Impurities eventually become cracks due to strong cutting and vibration forces. Other reasons for breakage are caused by dents created from ball clamp retention systems, compared to dual contact collet-type systems. Coolant alkaline levels will also contribute to shortened life span.
BIG Daishowa pullstuds are 98% pure and contain no lead. Our pullstuds have a high nickel alloy content which provides up to 30% higher strength than those not containing nickel.
Additionally, BIG pullstuds are roll threaded which provides 30% higher strength and excellent thread quality, compared to others which are cut threaded.