K12-385AS SUNNEN Honing Mandrel

Review SUNNEN Honing Mandrel .385 Inch .400

Introducing the SUNnen K12-385AS Honing Mandrel, a high-performance accessory designed for precision honing applications. This mandrel, with part number 385 and a diameter of 400mm, is engineered to deliver exceptional accuracy and durability.

The K12-385AS Honing Mandrel is manufactured using top-grade materials, ensuring it can withstand the rigors of heavy-duty honing processes. Its robust design allows for consistent honing results, even under high pressure and temperature conditions.

This mandrel is specifically designed for use with SUNnen honing machines and features a threaded connection that securely attaches to the spindle. Its precise engineering ensures a perfect fit, minimizing the risk of leaks or other complications.

The K12-385AS Honing Mandrel's large 400mm diameter provides ample space for honing large components, making it an ideal choice for automotive, aerospace, and industrial applications. Its versatility allows it to be used on a wide range of materials, including steel, cast iron, and non-ferrous metals.

The mandrel's surface is precision machined to ensure a smooth, uniform finish, which minimizes the risk of scratches or other surface damage during the honing process. Its durable construction also ensures that it maintains its shape and accuracy over time, even with frequent use.

In summary, the SUNnen K12-385AS Honing Mandrel is a high-quality, reliable, and versatile accessory that is essential for any honing operation requiring a large diameter mandrel. Its robust design, precise engineering, and durable construction make it an invaluable addition to any workshop or production facility.

SunnEN K12-385AS Honing Mandrel: A Comprehensive Analysis

The SunnEN K12-385AS Honing Mandrel is a popular choice for those seeking precision honing of crankshafts and other cylindrical components. In this analysis, we will discuss the key features, advantages, and potential drawbacks of this honing mandrel.

1. Designed for use with SUNNEN Model K12 honing machines.

2. Suitable for honing crankshafts up to 385 mm (15.16 inches) in length and 400 mm (15.75 inches) in diameter.

3. Made from high-strength steel for durability and rigidity.

4. Equipped with a self-aligning, adjustable pilot to ensure proper insert alignment and reduce honing time.

5. Features a patented adjustable collet system for easy insert changes.

1. Improved accuracy and efficiency: The self-aligning, adjustable pilot system ensures proper insert alignment, reducing the time required for honing and improving overall accuracy.

2. Enhanced versatility: The mandrel's ability to accommodate crankshafts up to 385 mm in length and 400 mm in diameter makes it a suitable choice for a wide range of applications.

3. Robust design: The mandrel's high-strength steel construction ensures durability and rigidity, making it ideal for heavy-duty use.

4. Time-saving design: The adjustable collet system simplifies insert changes, saving valuable time during the honing process.

1. Cost: The SUNNEN K12-385AS Honing Mandrel may be more expensive than some other honing mandrels on the market.

2. Limited compatibility: This honing mandrel is specifically designed for use with SUNNEN Model K12 honing machines, which may limit its appeal for those using other brands or models of honing machines.

The SunnEN K12-385AS Honing Mandrel offers several advantages, including improved accuracy, enhanced versatility, and a robust design. However, its cost and limited compatibility may be drawbacks for some users. Ultimately, if you are in need of a high-performance honing mandrel for use with a SUNNEN K12 honing machine, the SUNNEN K12-385AS Honing Mandrel is an excellent choice. If you are looking for a more budget-friendly option or require compatibility with other honing machines, you may want to explore other alternatives.

If you are in the market for a high-performance honing mandrel and are using a SUNNEN K12 honing machine, the SUNNEN K12-385AS Honing Mandrel is an excellent choice. Its self-aligning, adjustable pilot system, robust design, and adjustable collet system make it an efficient and precise tool for honing crankshafts and other cylindrical components. However, if your budget is limited or you require compatibility with other honing machines, you may want to consider alternative options.

Details:

Sunnen K12-385AS honing mandrel .385 - .400 , manufacturer. For more engine rebuilding tools and equipment, manufacturer: Sunnen. Part number: K12-385AS the as indicates soft shoes. Range: .385 - .400 or 9.78 10.16mm.

Condition: in good lightly used condition. The integral guide has most of its life remaining and the k12w wedge is in good shape.

specifications lightument:

• brand: Sunnen
• mpn: K12-385as
• country of origin: United States

returns lightument:

• time: 30 days
• policy: returns accepted
• paid by: buyer
• method: money back

seller lightument:

• city: council grove, kansas
• # reviews: 4536
• rating: 100.0%

offer lightument:

• started: april 7, 2026
• availability: in stock
• in stock #: 4
• sold #: 9
• options: ship-to-home
• prices: $32.00–$100.00
• item condition:
  • Used
  • New – Open box
• best offers: true

shipping lightument:

• type: calculated
• service: usps priority mail small flat rate box
• carrier: usps
• transit: 3-8 days
• class: expedited

general lightument:

• category: Business & Industrial > Light Equipment Tools

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• other
• credit card: discover
• wallet: apple-pay