What makes this ER20 standard precision collet stand out is its tight tolerance in a practical
repeatable checks against the target size
enabling cleaner pockets and more consistent finishes in challenging workpieces
Long shank for deep grooves: Provides extended reach and rigidity for deep or hard-to-reach features
Stock note: In-stock status refers to blanks available for immediate manufacture
Carmex Thread Mills Multifunction - With Coolant - UN (UNC UNF UNEF UNS) - 3/8 - 1/2 x 16 - MT7 4 Month Widin What makes this ER20 standardCarmex's Thread Mills Multifunction with coolant is an all in one threading solution designed for shops that need fast, accurate threaded holes. It combines drilling, chamfering, and thread milling in a single pass, cutting cycle times and reducing tool changes. All in one operation: Drills, chamfers, and mills threads in one pass, eliminating separate drilling steps. Thread standards supported: Compatible with UN, UNC, UNF, UNEF and UNS thread forms