Pepetools - Precision Engineered Professional Equipment

Aluminum Mandrel with Groove - Gold Standard

Aluminum Mandrel with Groove - Gold Standard - Main image
$18 $30 In stock

Machined from aircraft grade aluminum, harden anodized finish - this mandrel is the absolute market leader when it comes to quality, precision, and sizing consistency. Part of the Gold Standard series which includes the #174.GS finger sizer.

  • Sizes 1-16
  • Aircraft quality aluminum, military grade hard anodization 
  • Includes groove for stone set rings
  • Gold Standard
  • Previously marked as 175.00. The 175.GS includes an enhanced testing procedure to ensure consistency across the entire range of Pepetools Gold Standard Ring Calibrated ring mandrels.
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

John B. ★★★★★

The machining on this mandrel is so precise that my beads spin perfectly true every time. It's noticeably heavier and more substantial than my old steel one, which makes a huge difference in control. For the price, I can't imagine finding better quality and consistency.

Abigail ★★★★★

The anodized finish feels incredibly smooth and substantial in hand, and the groove is cut with perfect precision. I’ve checked it against three different calipers and the sizing is dead-on every single time.

William ★★★★★

I was a bit skeptical about the sizing claims, but this mandrel fits every ring blank I've tried perfectly—the groove makes centering a breeze. The aircraft-grade aluminum feels incredibly solid in hand, and the hard anodized finish hasn't shown a single scratch yet.