The Master Kit includes the Souber DBB Door Lock Mortiser kit, plus more than 30 extra Cutters and Accessories. The Souber DBB Door Lock Mortiser cuts a mortise for both the lock body and the faceplate quickly and easily, saving time and money. Vertical guides plus height and depth stops mean you cut where you want, never where you didn't intend. The DBB Door Lock Mortiser also can be used on aluminum storefront doors. Aluminum Cutters: 5/8" / 16.2mm 3/4" / 19mm 1” / 25.4mm 1-1/4" / 31.8mm Plunging Cutters: 17.6mm / 11/16" 23.0mm / 29/32” 25.4mm / 1" 29.0mm / 1-1/8" Carbide Tipped Wood Cutters: 0.52" / 13.2mm 0.575" / 14.6mm 5/8" / 16.2mm 11/16" / 17.5mm 3/4" / 19mm 20mm 13/16" / 20.6mm 7/8" / 22.2mm 23.0mm 15/16" / 23.8mm 1"/25.4mm 1-1/16" / 27mm 1-1/8" / 28.6mm 1-1/4" / 31.8mm
 Small Bore: DBB Small Bore Housing DBB Small Bore Shaft
 Boring Shafts: Standard Boring Shaft - Up to 100mm Deep Long Boring Shaft - Up to 180mm Deep Extra long Boring Shaft - Up to 265mm Deep Long Wood Drill Bits & Adapters: Long Wood Drill Bits 3/8" x 37" (10mm x 950mm) Long Wood Drill Bits 3/8" x 49" (10mm x 1250mm) Long Drill Adapter Long Drill Adapter Hinge Entry