ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40

ER Collet Chucks • ER Spring Collet • End Mill Collets
Discover the exceptional qualities our ER collet collection, crafted from high-carbon bearing steel (SUJ2). After undergoing heat treatment, this material strikes a perfect balance between hardness and toughness, ensuring remarkable wear resistance and an extended lifespan due to enhanced elasticity. With a hardness of HRC46° and a surface roughness within RA1.5, our ER Spring Collet are engineered to meet the highest standards of precision.

From ER8 to ER11, ER16, 20, 25, 32, and 40, our collets offer versatile clamping ranges – 1mm to 32mm. They accommodate contraction ranges of 1mm for hole diameters below 2.5mm and 2mm for hole diameters above 10mm, ensuring adaptability across various applications. Our concentricity is rigorously inspected according to DIN standards, resulting in two accuracy levels: A Grade (0.01mm), and AA Grade (0.005mm). For enhanced stability, we recommend pairing AA Grade collets with HSP nuts. These ER-series End Mill Collets are ideal for securely clamping drills, tapping screws, milling cutters, reamers, and a wide range of tools. Their elastic expansion and contraction features make them versatile, catering to a broad spectrum of applications. Experience the fusion of precision and versatility with our ER collet collection.

Designed to excel in various machining tasks, these collets offer steadfast reliability and accuracy. Whether in mechanical manufacturing, automotive, aerospace, electronics, or other sectors, our ER collets are poised to elevate your machining endeavors. Explore our collection today and redefine your precision experience. Welcome to give your inquiries, we are pleased to prepare quotations for you soon.

ER Collet Chucks • ER Spring Collet • End Mill Collets
Discover the exceptional qualities our ER collet collection, crafted from high-carbon bearing steel (SUJ2). After undergoing heat treatment, this material strikes a perfect balance between hardness and toughness, ensuring remarkable wear resistance and an extended lifespan due to enhanced elasticity. With a hardness of HRC46° and a surface roughness within RA1.5, our ER Spring Collet are engineered to meet the highest standards of precision.

From ER8 to ER11, ER16, 20, 25, 32, and 40, our collets offer versatile clamping ranges – 1mm to 32mm. They accommodate contraction ranges of 1mm for hole diameters below 2.5mm and 2mm for hole diameters above 10mm, ensuring adaptability across various applications. Our concentricity is rigorously inspected according to DIN standards, resulting in two accuracy levels: A Grade (0.01mm), and AA Grade (0.005mm). For enhanced stability, we recommend pairing AA Grade collets with HSP nuts. These ER-series End Mill Collets are ideal for securely clamping drills, tapping screws, milling cutters, reamers, and a wide range of tools. Their elastic expansion and contraction features make them versatile, catering to a broad spectrum of applications.

材質 Material: SUJ2 (高碳軸承鋼: 在熱處理後, 具有堅韌的硬度與韌性, 更好的耐磨耗性, 且彈性佳使用壽命更長)。

硬度 Hardness: HRC46°。

表面粗糙度 Surface roughness: within RZ2.5 以內。

ER8 的夾持範圍為 : 0.5mm ; ER11、16、20、25、32、40 的夾持範圍為: 1mm。

孔徑 2.5mm 以下的收縮範圍為: 1mm, 10mm 以上的收縮範圍為: 2mm。

同心度按DIN標準規範全數檢驗, 共計有三種精度等級: 普通級0.02mm, A級0.01mm  and AA級0.005mm。

AA級, 建議配合HSP螺帽使用，其穩定性更好。

適用於: 夾持鑽頭、螺絲攻、銑刀、鉸刀等工具。

具有彈性伸縮的功能、應用範圍廣泛、變化性強。

- Please provide your required accuracy and standard/level when inquiire quotations -  

 

Model No.	d	D	L
ER-11	1 , 1.5 , 2 , 2.5 , 3 , 3.175 , 3.5 , 4 , 4.5 , 5 , 5.5 , 6 , 6.5 , 7	11.5	18.0
ER-16	1 , 1.5 , 2 , 2.5 , 3 , 3.175 , 3.5 , 4 , 4.5 , 5 , 5.5 , 6 , 6.5 , 7 , 7.5 , 8 , 8.5 , 9 , 9.5 , 10	17.0	27.0
ER-20	1 , 1.5 , 2 , 2.5 , 3 , 3.175 , 3.5 , 4 , 4.5 , 5 , 5.5 , 6 , 6.5 , 7 , 7.5 , 8 , 8.5 , 9 , 9.5 , 10 , 10.5 , 11 , 11.5 , 12 , 12.5 , 13 , 13.5 , 14 , 15 , 16	21.0	31.0
ER-25	1 , 1.5 , 2 , 2.5 , 3 , 3.175 , 3.5 , 4 , 4.5 , 5 , 5.5 , 6 , 6.5 , 7 , 7.5 , 8 , 8.5 , 9 , 9.5 , 10 , 10.5 , 11 , 11.5 , 12 , 12.5 , 13 , 13.5 , 14 , 15 , 16 , 16.5 , 17 , 17.5 , 18 , 18.5 , 19 , 19.5 , 20	26.0	34.0
ER-32	2 , 2.5 , 3 , 3.5 , 4 , 4.5 , 5 , 5.5 , 6 , 6.5 , 7 , 7.5 , 8 , 8.5 , 9 , 9.5 , 10 , 10.5 , 11 , 11.5 , 12 , 12.5 , 13 , 13.5 , 14 , 14.5 , 15 , 15.5 , 16 , 16.5 , 17 , 17.5 , 18 , 18.5 , 19 , 19.5 , 20 , 20.5	33.0	40.0
ER-40	2 , 2.5 , 3 , 3.5 , 4 , 4.5 , 5 , 5.5 , 6 , 6.5 , 7 , 7.5 , 8 , 8.5 , 9 , 9.5 , 10 , 10.5 , 11 , 11.5 , 12 , 12.5 , 13 , 13.5 , 14 , 14.5 , 15 , 15.5 , 16 , 16.5 , 17 , 17.5 , 18 , 18.5 , 19 , 19.5 , 20 , 20.5 , 21 , 21.5 , 22 , 22.5 , 23 , 23.5 , 24 , 24.5 , 25 , 25.5 , 26 , 26.5 , 27 , 27.5 , 28 , 28.5 , 29 , 30 , 31 , 32	41.0	46.0