CESSCO Knows ICS Small Openings Special Sale: Buy any TWO ICS Diamond Chains and get a matching guide bar FREE Information to help you get the most of your ICS Investment. Cut Further, faster, and smarter. Application: Small Openings Click Here: for a printable copy of this page. FREE Ground Freight (Continental U.S.) - Click here for details on our shipping policies. ICS 695XL vs Core Drill ICS Method - 5 minutes 1. Score cut the opening on all 4 sides (4 Minutes) 2. Plunge cut each side starting at the center of each cut and working toward the corners (3 Minutes) The result a mitered opening with perfect corners and no over-cuts. Core Drill Method - 14 minutes 1. Drill a hole to mount the core drill. (2 Minutes) 2. Mount the drill stand. (1 Minutes) 3. Attach and tighten the core bit. (1 Minutes) 4. Drill the hole. (8 minutes) 5. Remove the core bit and stand. (2 minutes) How to Guide Versus other methods Air Conditioning Installation Concrete Pipe Taps Egress Windows HVAC & Electrical Openings Landscaping Applications Mechanical Openings Air Conditioning Installation Small Openings FREE Ground Freight (Continental U.S.) - Click here for details on our shipping policies.