POWER OF ATTORNEY

        The undersigned hereby constitutes and appoints each of the Chief
Executive Officer, General Counsel and the Chief Financial Officer of Colfax
Corporation the undersigned's true and lawful attorney-in-fact to:

        (1)     execute for and on behalf of the undersigned Forms 3, 4 and 5 in
                accordance with Section 16(a) of the Securities Exchange Act of
                1934 and the rules thereunder;

        (2)     do and perform any and all acts for and on behalf of the
                undersigned which may be necessary or desirable to complete the
                execution of any such Form 3, 4 or 5 and the timely filing of
                such form with the United States Securities and Exchange
                Commission and any other authority; and

        (3)     take any other action of any type whatsoever in connection with
                the foregoing which, in the opinion of such attorney-in-fact,
                may be of benefit to, in the best interest of, or legally
                required by, the undersigned.

        The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform all and every act and thing whatsoever
requisite, necessary and proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming any of the undersigned's responsibilities to
comply with Section 16 of the Securities Exchange Act of 1934. This Power of
Attorney can only be revoked by delivering a signed, original "Revocation of
Power of Attorney" to the attorney-in-fact.

        IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 9th day of April, 2008.

                                        /s/ William E. Roller
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                                        William E. Roller