[3400MZ-5.5~3400MZ-22] Ko-ken Z-EAL 3/8"(9.5mm)SQ. 6-Point Socket 1 Piece (16 Sizes Available) - MisakaZoo

[3400MZ-5.5〜3400MZ-22] Ko-ken Z-EAL 3/8"(9.5mm)SQ. 6-Point Socket, Single Piece (16 Sizes Available)

Ko-ken(コーケン) SKU: 3400MZ-5.5
Size
Selling price (Please note that the price is displayed excluding tax for carts compatible with both Japan and overseas.)
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Specifications of the selected size
Part No.
3400MZ-5.5
Overall length
19mm
Dimensions
D1:8.5 D2:17 H:3.5（mm）
Weight
approx. 16g
JAN
4991644030651
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  • Shipping schedule: Expected to ship within 1-5 business days. We will generally contact you via email after your order.
  • This product is available for pre-order: Delivery date will be communicated via email after your order.
Including tax View the shipping table. If shipping charges apply, they will be calculated and added at checkout.

※ The product image is a representative image common to the series. Only 1 unit of the selected size (part number) will be delivered.

Ko-ken Z-EAL
[3400MZ-5.5〜3400MZ-22]
3/8"(9.5mm)SQ. 6-Point Socket 16 sizes in total (5.5mm to 22mm)

Part No. Size Overall length Dimensions (mm) Weight JAN Price
3400MZ-5.5 5.5mm 19mm D1:8.5 D2:17 H:3.5 Approx. 16g 4991644030651 ¥667
3400MZ-6 6mm 19mm D1:9.1 D2:17 H:3.5 Approx. 17g 4991644030668 ¥667
3400MZ-7 7mm 19mm D1:10.3 D2:17 H:3.5 Approx. 17g 4991644030675 ¥667
3400MZ-8 8mm 20mm D1:11.5 D2:17 H:4.5 Approx. 17g 4991644030682 ¥667
3400MZ-10 10mm 20mm D1:14 D2:17 H:4.5 Approx. 18g 4991644030699 ¥667
3400MZ-11 11mm 21mm D1:15.3 D2:17 H:5.5 Approx. 18g 4991644030774 ¥667
3400MZ-12 12mm 21mm D1:16.5 D2:17 H:5.5 Approx. 19g 4991644030705 ¥667
3400MZ-13 13mm 21mm D1:17.8 D2:17 H:8.5 Approx. 19g 4991644030712 ¥735
3400MZ-14 14mm 21mm D1:19 D2:17 H:8.5 Approx. 20g 4991644030729 ¥735
3400MZ-15 15mm 21mm D1:20.2 D2:18.2 H:8.5 Approx. 24g 4991644030781 ¥735
3400MZ-16 16mm 21mm D1:21.3 D2:19.3 H:8.5 Approx. 28g 4991644030798 ¥735
3400MZ-17 17mm 21mm D1:22.5 D2:20.5 H:8.5 Approx. 32g 4991644030736 ¥735
3400MZ-18 18mm 22mm D1:23.6 D2:21.6 H:9.5 Approx. 38g 4991644030804 ¥735
3400MZ-19 19mm 22mm D1:24.8 D2:22.8 H:9.5 Approx. 41g 4991644030743 ¥735
3400MZ-21 21mm 23mm D1:27 D2:25 H:10.5 Approx. 51g 4991644030750 ¥787
3400MZ-22 22mm 23mm D1:28.3 D2:26.3 H:10.5 Approx. 58g 4991644030767 ¥825

Square drive: 9.5mm (3/8 inch)

Official web catalog (2025-26 edition, p. 32):Japanese ／ English

Google Product Category
English notation: Hardware > Tool Accessories > Tool Sockets
Japanese notation: DIY Supplies > Tool Accessories > Sockets
Category ID: 5571

●Domestic Shipping Costs
Please add the product to your cart to check the shipping costs. We have various shipping options, so please check each time. There are also many products available with free shipping.
●International Shipping Costs
Shipping costs are calculated based on weight and volume. Please understand that some products are not eligible for international shipping.
●Returns After International Shipping
Please contact us within 30 days of receiving the product. Only products in their original condition will be accepted. Unopened and unused products can be returned. Return shipping costs will be borne by the purchaser. Additionally, some products may be marked as free shipping, but please be aware that the sale price may include air freight, fuel surcharges, demand surcharges, and other costs.

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International Shipping Policy — MisakaZoo

MisakaZoo – Your Specialty Store for Tools & Materials

Founded in Japan in 1948, MisakaZoo has built nearly 78 years of history rooted in gratitude and respect for our customers. MisakaZoo is a registered trademark in Japan. We specialize in Japanese-made tools sourced directly from Japan, offering a wide selection of JDM products available exclusively in the Japanese market.

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Shipping Options

Express Worldwide (DHL Express / FedEx)
Our fastest international shipping option. Delivery to major destinations in Europe and North America typically takes 3–4 business days.

Japan Post ePacket Light (items under 1 kg)
An economical option for lightweight packages. Includes tracking, with delivery made directly to the recipient's mailbox. Estimated delivery time: 5–21 days.

Japan Post Sea Freight / Funabin (10 kg – 30 kg)
An affordable option for heavier shipments. Estimated delivery time: approximately 1–3 months. Please note that sea freight may not be available for all destinations. We will confirm availability after your order is placed and contact you if any issues arise.

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Customs Duties & Taxes

All shipments — regardless of shipping method — are made on a DDU (Delivered Duty Unpaid) basis. This means the buyer is responsible for paying any applicable customs duties and import taxes upon delivery. Customs duties cannot be prepaid.

U.S. Customers: We do not collect sales tax for any U.S. state.

European & Australian Customers: Please be aware that VAT and GST are classified as import-related duties and taxes. These charges are assessed by national customs authorities at the time of importation and are the responsibility of the buyer.

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If you have any questions about shipping to your country, please don't hesitate to contact us before placing your order.

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●Regarding returns due to initial defects or issues after international shipping, we will respond with a full refund.
Return shipping costs will be borne by the seller.
●Regarding other issues after international shipping
If the customer is unable to receive the product due to long-term absence, refusal of receipt, incorrect address, etc., and the storage period of the shipping company has expired or the product has been returned, we may ask you to bear all expenses such as air freight costs. Please be aware of this in advance before making a purchase.

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