The Pro-Pack I is one of our most popular items. It includes the Precision Sharpener - WE100 and the most essential items bundled together for a truly Wicked Edge on your knives. Note: As of May 3rd, 2018 the Pro-Pack 1 now includes the Aluminum Base. Features Guide Rod pivots: Ball-Joint/L-bracket Angle Range: 15-30 degrees Angle Setting: Manual, independent angle adjustment on both sides of the sharpener Main angle Adjustment: 1 degree increments Micro Adjustment: Not included Clamping System: Standard Wicked Edge Vise with stainless steel inserts, manually operated with an Allen Key Knife.