[3305A-3/16〜3305A-1] Ko-ken 3/8"(9.5mm)SQ. 12-Point Deep Socket, Singl

※ The image shown is a representative image common to the series. Only one piece of the selected size (part number) will be delivered.

Ko-ken
[3305A-3/16〜3305A-1]
3/8"(9.5mm)SQ. 12-Point Deep Socket, 18 sizes (3/16inch to 1inch)

Part No.	Size	Overall length	Dimensions (mm)	Weight	JAN	Price
3305A-3/16	3/16inch	55mm	D1:8.3 D2:17.3 H:6 H2:41.5	Approx. 35g	4991644032815	¥1,357
3305A-7/32	7/32inch	55mm	D1:8.9 D2:17.3 H:6 H2:41.5	Approx. 35g	4991644032822	¥1,357
3305A-1/4	1/4inch	55mm	D1:9.9 D2:17.3 H:7 H2:41.5	Approx. 37g	4991644032839	¥1,357
3305A-5/16	5/16inch	55mm	D1:12 D2:17.3 H:9 H2:41.5	Approx. 40g	4991644032853	¥1,357
3305A-11/32	11/32inch	55mm	D1:12.3 D2:17.3 H:10 H2:41.5	Approx. 41g	4991644032860	¥1,357
3305A-3/8	3/8inch	55mm	D1:14 D2:17.3 H:11 H2:41.5	Approx. 46g	4991644032877	¥1,357
3305A-7/16	7/16inch	55mm	D1:16 D2:17.2 H:12 H2:41.5	Approx. 51g	4991644032891	¥1,357
3305A-1/2	1/2inch	55mm	D1:18 D2:17 H:14 H2:41.5	Approx. 53g	4991644032907	¥1,500
3305A-9/16	9/16inch	55mm	D1:20 D2:18 H:16 H2:41.5	Approx. 60g	4991644032921	¥1,500
3305A-19/32	19/32inch	55mm	D1:21 D2:20 H:16 H2:40.5	Approx. 74g	4991644032938	¥1,500
3305A-5/8	5/8inch	55mm	D1:22 D2:20 H:17 H2:40.5	Approx. 76g	4991644032945	¥1,500
3305A-11/16	11/16inch	55mm	D1:23.5 D2:22 H:18 H2:40.5	Approx. 93g	4991644032952	¥1,500
3305A-3/4	3/4inch	55mm	D1:25 D2:24 H:20 H2:39.5	Approx. 98g	4991644032969	¥1,575
3305A-25/32	25/32inch	－	－	－	4991644032976	¥1,770
3305A-13/16	13/16inch	65mm	D1:27 D2:26 H:22 H2:49.5	Approx. 126g	4991644032983	¥1,770
3305A-7/8	7/8inch	65mm	D1:29 D2:28 H:23 H2:48.5	Approx. 163g	4991644032990	¥1,770
3305A-15/16	15/16inch	65mm	D1:31 D2:30 H:25 H2:47.5	Approx. 191g	4991644033003	¥1,957
3305A-1	1inch	－	－	－	4991644033010	¥2,100

Square drive: 9.5mm (3/8 inch)

Official web catalog (2025-26 edition, p. 75):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.

Although it was a disassembled set, it was properly packaged.

This was my first time purchasing a disassembled set, but it arrived well-packaged in a cardboard box. I confirmed the operation with the grass cutterハイコーキ(Hikoki_ex-HitachiKoki) and also verified the Bluetooth connection with my smartphone. Durability and other aspects will be assessed in the future.

Hikoki｜ハイコーキ 36Vマルチボルト電池 BSL36A18BX １台　ブルートゥース機能付　セットバラシ品（箱なし）

The design is excellent! The delivery was smooth, and the package was packed very neatly.

I would love to buy another one in the future!

マキタ 18V充電式インパクトドライバ TD173D 本体のみ「ラップグレードフィルム加工済品」

Great product

Great product, better than the Australian delivery product

[本体のみ] HiKoki｜ハイコーキ 36V セーバソー CR36DSA NN

“Straight Type Demolition Extra Thick - Total Length 200mm Blade Thickness 1.3mm 5 Pieces” 0037-6974 No.222CW Reciprocating Saw Blade Matrix II (SKH56)

Excellent fast service

Excellent fast service. Highly recommend

Hikoki(ハイコーキ) セーバソーブレード純正アクセサリー「バリエーション商品」

Hi Darren, thank you so much for your kind words! We're thrilled to hear you had a great experience. We appreciate your recommendation and look forward to serving you again!

Thank you for your rating! We are glad that you are satisfied with your purchase.

All Good

All correct

ベッセル電ドラボールⅡ No.220USBC-1(+2 x 100付属) 2025-Model

Thank you, Francisco! We are glad to know that everything was fine and that you are satisfied with your purchase. We hope to serve you again soon!

Battery Ratchet

Nice little tool, and well made 👍🏼
D.Francis

Hi David, thanks for the great review! We're glad you like the ベッセル(Vessel) Electric Slim Ratchet 400ER3. If you have any questions or need assistance, feel free to reach out. Enjoy your tool!

Immaculate!

Appreciated for your comment.

Speechless, incredible product. Thank you

Thanks a lot!

Fast shipping, thank you so much.

「本体のみ」 Hikoki(ハイコーキ) 充電式インパクトドライバ WH36DD　セット内容(セットバラシ品-OpenBox)：本体のみ

Thanks a lot!

works great

works great, I would however love a 1/4" adapter to be included

Hi Bart, thank you for your positive feedback! We'll take note of your suggestion for a 1/4' adapter. We hope you enjoy your tool!

Confirmed

Finally got the 36V Multi-Tool.With Starlock Max compatibility, the removal mechanism is completed with a pinless lever. The size may feel large at first, but it is easier to handle with this level of power.

Thank you for your review! We are very pleased to hear that you chose the HiKOKI CV36DMA(NN) and that it met your needs for a 36V multi-tool. The specifications are excellent, and the combination of Starlock Max and the pinless lever has made it even easier to use. We are also very happy to hear that the power was just right for your needs. Thank you very much for choosing HiKOKI.

Anonymous
[5 pairs | Spark Plug] Moldex 6604 Spark Plugs Earplugs NRR33 5 sets
Anonymous (Suzurandaikitamachi, Hyōgo, Japan)

Confirmed

Thank you.
I appreciate the prompt shipping, and there were no issues with the product or packaging. Additionally, thank you for including a bonus...! This time, due to my oversight, the address was not accurate, and I apologize for the trouble caused, but I am grateful for your sincere response during that time.
Regarding the product, I believe the sound insulation is excellent and can be used widely during tool use or while sleeping. Personally, I felt that the sound insulation is higher than that of the Pura-Fit. However, it seems to be slightly firmer than the Pura-Fit. For those with smaller ear canals, the Pura-Fit may be a better option.

Thank you for your product review regarding the earplugs. It seems that the product was delivered without any issues via Nekoposu, which is great.