MAXIMUM LOG DIAMETERS With LL1545 ? 4-1/2? Max Log Diameter With LL2580 ? 6-1/2? Max Log Diameter Keep Your Mortise Holes in Line? with our Drill Sergeant - Angle Driller?. This high quality, heavy duty, USA made product ensures that you get accurate alignment every single time and is perfect for stair railings, Adirondack chairs and more! Log Lock? Not Included Recommended Drills: BOSCH PROFACTOR 18V CORDLESS 1/2 IN. DRILL/DRIVER BOSCH 5/8 IN. DRILL - GBM9-16 Milwaukee 1660-6 *Most electric drills and 18V cordless or higher drills will work. FEATURES BENEFITS 1. USA Made 2. Adjustable from 0 - 45 with "Peep Sight" Angle Alignment Guide? 3. Works with Self Feed Bits up to 2" 4. 2-Piece Baseplate (Allows Mounting of Log Lock on Either Side of the Drill Sergeant for Versatility and Left/Right Hand Users) 5. Fits Most 1/2" Drills 6. Heavy Duty Hardened Shank 7. Genuine All-Steel Jacob's Chuck 8. Zinc-Plated Side Arms for Durability and Superior Corrosion Resistance 9. Standard Zerk Grease Fitting for Easy Maintenance 8."Quick Turn" Adjustment Handles 9. Easily Attaches to the Lumberjack Tools Log Lock LL1545 (not included) 10. Integral "Lock-Out" Safety Drop Prevention System 11. Adjustable Drill Depth Stop for Consistent Holes 12. Bolts Directly to Table or Workbench (Portable)