[10400A-4.1/8~10400A-6.1/2] Ko-ken 3.1/2"(88.9mm)SQ. Impact 6-Point Socket 1 Piece (20 Sizes Available) - MisakaZoo

[10400A-4.1/8〜10400A-6.1/2] Ko-ken 3.1/2"(88.9mm)SQ. Impact 6-Point Socket, Sold Individually (20 Sizes)

Ko-ken(コーケン) SKU: 10400A-4.1/8
Size
Selling price (Please note that the price is displayed excluding tax for carts compatible with both Japan and overseas.)
Regular Price $63,300.00
Regular Price Selling Price $63,300.00
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Specifications of the selected size
Part No.
10400A-4.1/8
Overall length
176mm
Dimensions
D1:165 D2:175 H:86(mm)
Weight
approx. 19370g
JAN
4991644493418
Made-to-order item. Ships within 7 to 10 business days of order.
  • You can choose a secure payment method.
  • 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 piece of the selected size (part number) will be delivered.

Ko-ken
[10400A-4.1/8〜10400A-6.1/2]
3.1/2"(88.9mm)SQ. Impact 6-Point Socket All 20 sizes (4.1/8inch to 6.1/2inch)

Part No. Size Overall length Dimensions (mm) Weight JAN Price
10400A-4.1/8 4.1/8inch 176mm D1:165 D2:175 H:86 Approx. 19370g 4991644493418 ¥269,250
10400A-4.1/4 4.1/4inch 178mm D1:168 D2:175 H:87 Approx. 19770g 4991644493425 ¥269,250
10400A-4.3/8 4.3/8inch 180mm D1:172 D2:175 H:88 Approx. 20660g 4991644493432 ¥269,250
10400A-4.1/2 4.1/2inch 182mm D1:175 D2:175 H:89 Approx. 21160g 4991644493449 ¥269,250
10400A-4.5/8 4.5/8inch 183mm D1:178 D2:175 H:90 Approx. 21550g 4991644493456 ¥269,250
10400A-4.3/4 4.3/4inch 185mm D1:180 D2:175 H:91 Approx. 21930g 4991644493463 ¥297,750
10400A-4.7/8 4.7/8inch 190mm D1:188 D2:175 H:94 Approx. 23940g 4991644493470 ¥319,500
10400A-5 5inch 191mm D1:188 D2:175 H:95 Approx. 24500g 4991644493487 ¥357,750
10400A-5.1/8 5.1/8inch 194mm D1:193 D2:175 H:97 Approx. 25050g 4991644493494 ¥357,750
10400A-5.1/4 5.1/4inch 198mm D1:197 D2:175 H:100 Approx. 25990g 4991644493500 ¥365,250
10400A-5.3/8 5.3/8inch 202mm D1:201 D2:175 H:102 Approx. 27750g 4991644493517 ¥408,000
10400A-5.1/2 5.1/2inch 205mm D1:205 D2:175 H:105 Approx. 28560g 4991644493524 ¥408,000
10400A-5.5/8 5.5/8inch 208mm D1:208 D2:175 H:106 Approx. 30110g 4991644493531 ¥429,750
10400A-5.3/4 5.3/4inch 210mm D1:212 D2:200 H:108 Approx. 30610g 4991644493548 ¥432,750
10400A-5.7/8 5.7/8inch 212mm D1:215 D2:200 H:109 Approx. 31240g 4991644493555 ¥432,750
10400A-6 6inch 214mm D1:219 D2:200 H:110 Approx. 32460g 4991644493562 ¥435,750
10400A-6.1/8 6.1/8inch 216mm D1:223 D2:200 H:112 Approx. 33670g 4991644493579 ¥435,750
10400A-6.1/4 6.1/4inch 218mm D1:227 D2:200 H:114 Approx. 34590g 4991644493586 ¥494,250
10400A-6.3/8 6.3/8inch 221mm D1:231 D2:200 H:115 Approx. 36720g 4991644493593 ¥535,500
10400A-6.1/2 6.1/2inch 224mm D1:235 D2:200 H:117 Approx. 37940g 4991644493609 ¥535,500

Official web catalog (2025-26 edition, page 256):Japanese / English

Google Product Category
English: Hardware > Tool Accessories > Tool Sockets
Japanese: 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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