Use: special alloys optimized for use as drill entry material
Thickness: 0.14 mm-0.20 mm
Thickness Tolerance: ±10％
Size Tolerance: ±3 mm
Warpage:　 ≤ 1% of diagonal
Roughness: 3.5 μm ±1 μm
Standard Size: 36"×48"; 40"×48"; 42"×48" 37"×49"; 41"×49"; 43"×49"
PACKAGE:1000pcs/pallet. 24pallets/20ft
Advantages: 1. Good protection of the sheet free CCL from scratches and pressing marks.
2. Excellent guides to high speed drilling when drill bit touch the surface.
3. Good conductor character and good cleaning of the drill can 　greatly extend drill’s life and avoid oxidation of the surface.
4. Burr-free drilling and excellent hole wall quality.