crystals are harder and sharpen and remove metal more efficiently but because they do not u201c load up u201d with sharpening debris unlike other common abrasives and because they do not wear significantly with use the incorporation of diamond abrasives significantly enhances the effectiveness of this manual sharpener a magnetic pad like structure or sheet 31 such as shown in the break away portion of fig7 located below pad 29 proved to be a particularly convenient means to hold a ferromagnetic metal backed abrasive coated pad 29 securely on top of the sharpener 25 shown in fig5 6 a 6 b 6 c and 7 this magnetic sheet 31 attached or adhered to the body 34 of sharpener 25 makes it extremely easy to interchange pads 29 of the different abrasive grits as needed for the presharpening and honing steps without fasteners a recess 24 fig5 and 7 in body 34 located near pad 29 permits the user to lift pad 29 from body 34 to remove the pad thus fig5 and 7 illustrate two different pads with the fine grit pad having a central longitudinal groove shown in fig5 and the ungrooved coarse grit pad shown in fig7 the unique design of this sharpener allows it to be used easily by either left or right handed individuals and with either left or right handed scissors for the sharpener 25 shown.