【6-Roller Semi-Circle Forming Kit】​Includes 1 main unit + 6 interchangeable rollers (4-11mm groove diameter, semi-circular optimized) for crafting half-round jewelry like arcs, pendants, and partial hoops. Hex wrench quick-release design enables fast roller swaps on this rolling mill machine.​ 【Premium 40 Chromium Steel Build】​Rollers forged from wear-resistant 40 chromium steel ensure smooth, scratch-free semi-circular shaping, while the powder-coated steel frame protects your jewelry press machine from rust – ideal for repetitive arc-forming tasks.​ 【2-Wheel Locking Alignment System】​Upper/lower roller design with precision lock slots eliminates lateral movement, delivering uniform semi-circular profiles without drift. Adjust thickness from 0.03mm to 6.5mm via spring-loaded T-handle – specialized for half-round metalworking on this rolling mill machine.​ 【Effortless Single-Arm Operation】​Ergonomic hand-crank design reduces effort, enabling easy creation of consistent semi-circular bends for hours. The low-friction mechanism of this jewelry press machine suits both beginners and professional artisans.​ 【Semi-Circular Jewelry Specialized】​Engineered exclusively for half-round shaping (arched pendants, open rings, curved components) – not for full circles or flat sheets. Works with gold, silver, and copper to form precise semi-circles, perfect for unique jewelry designs with your rolling mill machine. Need precise semi-circular jewelry tools? This kit delivers.​

6 rollers (4-11mm), hex quick-release: swap fast for arcs, pendants, partial hoops—no downtime.40Cr steel rollers: wear-resistant, scratch-free shaping; powder-coated frame: rust-proof for heavy use.2-wheel locking system: precision slots eliminate drift, ensure uniform semi-circles; 0.03-6.5mm adjust via T-handle—engineered for half-round work.Ergonomic crank: low-effort, smooth mechanism—comfortable for hours, pros & beginners alike.Specialized for semi-circles: arched pendants, open rings, curved components (gold/silver/copper)—not full circles/flat sheets.

Product Parameters

Product name: Jewelry rounding machine

Material: 40# chrome steel

Package content: 1x bare machine 6x rollers

Roller size:
(4-5-6-7MM) (2pcs)
(8-9MM) (2pcs)
(10-11MM) (2 pcs)

Notes: due to the size of manual measurement, there is a slight error