Basic size: 76.2x17x5/3mm Material HSS Hardness 61-62HRC To get a quote or more details sooner about this pneumatic air knife holder , please email us at phoebe@lcblade.com OR whatapp +86 13399550005 Disk knife with bearing inside is a part of pneumatic knife holder, usually with material 9CrSi, SKD11, HSS and so on.
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