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sourcing map 4pcs ER11-A(M14) Type Collet Clamping Nut with Dynamic Balance Holes 40Cr Alloy Steel for CNC Machine Chuck Lathe Milling Tools Holder, Black & Bright Silver
★★★★★
$53.99
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About this item
- Size - ER11-A(M14); Thread Diameter: 14 mm / 0.55"; Thread Pitch: 0.75 mm / 0.03"; Nut Outer Diameter: 19 mm / 0.75"; Thick: 14 mm / 0.55"; Hex Width: 17mm / 0.67".
- Material - Made of 40Cr alloy steel with a hardness range of HRC48-50, offering high strength and toughness. After heat treatment, it ensures durability and reliability under demanding conditions.
- Feature - Serving as a good replacement part, this collet nut provides superior performance and compatibility. Suitable for most tool holders, hex nuts can be used with ER-style tool holders, extension bar nut holding drill bit, tool holders, boring tools, and other tools.
- Application - Suitable for collets in CNC lathes, milling machines, and other machine tools, it securely holds cutting tools, ensuring precision and stability during machining. Widely used in mechanical processing, metalworking, automotive manufacturing, and other industries.
- Note - Do not over-tighten the nut, as this will damage the collet; Check the clamping nut for wear and looseness regularly, and replace damaged parts in time to ensure safe performance.
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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