Home - Products-Other Machine Tool Series-EOC Hook Spanner | Precision C-Type Wrench for Milling Machine Collet Nuts (HRC44-48)

EOC Hook Spanner | Precision C-Type Wrench for Milling Machine Collet Nuts (HRC44-48)

Product Features

For tightening / loosening EOC clamping nuts on CNC tool holders
Forged alloy steel, heat‑treated for high strength
Precision‑machined hook profile, perfect fit for EOC nut grooves
Anti‑slip hook design, avoids nut damage
Solid one‑piece construction for heavy‑duty workshop use
Multiple sizes available: EOC25, EOC32, EOC40, EOC50 etc.

Selling Points

Accurate torque transfer, no slipping during operation
Long service life for frequent CNC production
Protects EOC nuts from scratching & deformation
Easy & fast collet change‑over
Cost‑effective OEM & standard options available
Strict dimensional consistency for interchangeability

Customer Concerns

Proper matching between wrench size and EOC nut model
Hardness & wear resistance under continuous heavy torque
Hook precision to prevent nut surface damage
Durability for daily CNC workshop mass‑production
Size availability & quick lead time

FAQ

Q: Which EOC nut does this spanner fit?A: Match spanner model exactly with your EOC‑series clamping nut (EOC25 / EOC32 / EOC40 / EOC50). Do not use on mismatched sizes.

Q: Why does the hook slip off the nut?A: Confirm correct size selection. Check hook wear. Keep hook fully seated into nut grooves before applying force.

Q: Can I apply extra leverage with extension pipe?A: Not recommended. Excess force may bend or break the wrench, or crack EOC nuts.

Q: Is custom size acceptable?A: Yes, OEM custom sizes are supported upon request.

Q: How to maintain this hook spanner?A: Keep clean from chips; store dry. Replace once hook shows obvious wear or deformation.

If you have any questions contact with her:

Media Contact:Alisa-Export Manager

Name: Alisa

Title: Export Manager

Phone/Whatapp/Wechat: +86‑15288891522

Email: ht06@ht-tools.net

alisa@httools.com

Next Product Inquire Now

Order No.	L	Dia of nuts(mm)
Order No.	mm	Dia of nuts(mm)
B/EOC6	90	18-21
B/EOC8	125	22-26
B/EOC10	140	28-32
B/EOC12	154	34-36
B/EOC16	168	38-42
B/EOC20	190	45-52
B/EOC25	210	55-62
B/EOC32	230	68-72
B/EOC40	240	78-85
B/EOC50	250	100-110

EOC Spanner

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HT-TOOLS Catalog 2025

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