Metal Stock & Tubing

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Buying guide: DIY Metal Chassis & Roll Bars — which stock to buy for which scale, and how to braze it

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316L Stainless Steel Brake Line Tubing Coil — 3/16" x 25 ft

$46.52

Sold by eBay · Free shipping

Sold by eBay

The 1/10 tube-chassis stock pick from our DIY metal chassis guide: 3/16 in (4.76mm) 316L marine-grade stainless coil, hollow so it stays light. Stainless means NO zinc coating to strip before brazing — the reason this coil is the featured pick over cheaper galvanized coils. 7 available, free shipping — $46.52 landed to 83401. Verified Oct 13, 2026.

Free shipping

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K&S Round Brass Rod Assortment (11 Pieces) — SKU 3405

$19.99

Sold by K&S Precision Metals

11 x 12 in solid brass rods, .020 in to 3/16 in including 1/8 in, 5/32 in and 3/16 in. Solid rod is the pick for short tight-bent pieces, mounting tabs, and ends you plan to drill and tap. K&S direct ships free on orders $40+ (the guide's four K&S items total $74.95). In stock. Verified Oct 13, 2026.

Free shipping on orders $40+

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K&S Round Brass Telescopic Tubing Assortment, Small (12 Pieces) — SKU 3400

$29.98

Sold by K&S Precision Metals

12 x 12 in brass tubes, 1/16 in to 13/32 in including 3/16 in, .014 in wall, telescoping sizes that nest inside each other. The beginner-friendly cage stock: easy to cut, bend and silver-braze, ideal for 1/24 and 1/18 cages, bumpers and sliders. K&S direct ships free on orders $40+ — the four K&S assortments in our DIY guide total $74.95 and ship free together. In stock. Verified Oct 13, 2026.

Free shipping on orders $40+

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K&S Round Aluminum Telescopic Tubing Assortment (8 Pieces) — SKU 3403

$9.99

Sold by K&S Precision Metals

8 x 12 in aluminum tubes, 1/16 in to 9/32 in including 3/16 in and 1/4 in, .014 in wall, 3003-H14. The lightweight option for chassis rails, plates and standoffs — bolt or rivet it rather than brazing (aluminum is beginner-hostile to braze; see our DIY metal chassis guide). K&S direct ships free on orders $40+. In stock. Verified Oct 13, 2026.

Free shipping on orders $40+

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K&S Music Wire 3/16" OD x 36" (4 Pieces) — SKU 509

$14.99

Sold by K&S Precision Metals

Spring-tempered carbon steel wire (ASTM A228), 4 x 36 in lengths. For pins, body clips, light links and spring details on scratch builds. K&S direct ships free on orders $40+ (the guide's four K&S items total $74.95). In stock. Verified Oct 13, 2026.

Free shipping on orders $40+

View deal at K&S Precision Metals Found it cheaper? Let us know

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