High precision collet

ER collet

·Material:High-carbon bearing steel ·Hardness:HRC44-48 ·Surface roughness:within RZ2.5 ·The internal hole is manufactured by precise honing ·There are two classes of precision : A class 0.01mm and UP class 0.005mm ·It is used for the cutting tools like drills,taps ,mills and reamers ,etc.

SK collet

·Material:High-carbon bearing steel ·Hardness:HRC44-48 ·Surface roughness:within RZ2.5 ·The internal hole is manufactured by precise honing ·Precision:5μ(4D length) ·NIKKEN standard SK collet ·It is used for the cutting tools like drills,taps,mills and reamers

ER steel sealed collet

·Material:High-carbon bearing steel ·Hardness:HRC44-48 ·Surface roughness:within RZ2.5 ·The internal hole is manufactured by precise honing ·There are two precision :0.005mm and 0.01mm ·Used for center water cutting tool ·Water pressure can reach 70KGf/C㎡

ER Tapping Collet

·Material:High-carbon bearing steel ·Hardness:HRC44-48 ·Surface roughness:within RZ2.5 ·The internal hole is manufactured by precise honing ·Precision：≤0.02mm