Thanks to my knowledge gained in practice as an industrial and scientific cutter, I can confidently say that this aligner is a lifesaver! The Transfer Center Punch Aligner offers superb accuracy, which is essential in the field of cutting tools .Its unique design and sturdy material give it a PERFECT grip, making it easy to transfer punch marks to the desired surface. One con, however, is that it is slightly heavier than expected but that is a minor concern given its top-notch functionality. Highly recommended!