Hole Punch Set, SAE & Metric, 3/16'' - 1-3/8'' & 5 - 35mm, 14 Piece, 6'' Interchangeable

Tips: 1. Best results are achieved when using on a flat and even surface. Preferably use with a wooden or plastic surface under cutting material as metal or other heavy surfaces may damage the hole punch. 2. Remove the spring-loaded centering pin for cutting out circles without damaging the disc cut out. To remove the center punch, unscrew the top bolt of the punch handle, remove the rubber grip, and loosen the allen screw to remove the center punch. Operating Instructions: 1. Mark the center of the hole to be punched out. 2. Choose the appropriate hole punch and screw it on the punch handle. 3. Apply the spring loaded centering pin at the marked center. Note: The spring loaded centering pin can be removed to cut full circles and/or to avoid damaging the disc cut out. 4. Hold the punch handle vertically to the work piece. 5. Hit the top of the punch handle with a hammer. Note: Hitting to hard may damage your hole punch while hitting the softly may not create a proper hole in your work piece.