Cantilever for Contact Mode AFM (09700-99) for Contact Mode Material: Si, monolithic Reflex coating: Aluminium Holder chip: 3.4 x 1.6 x 0.3 mm, with alignment grooves Resonance frequency: 13 kHz Spring Constant: 0,2 N/m Length: 0.45mm Width: 0.05mm Tip radius: less than 10nm 10 pcs Weight: 0.04 kg