The double-ended ring spanners are made of drop forged steel, strong and durable and does not bend or scar easily. Both ends are rings and it consists of sizes 6-7mm, 8-9mm, 10-11mm, 12-13mm, 14-15mm, 16-17mm, 18-19mm and 20-22mm.
Drop forged steel
Hardened and tempered
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