Drill bit: 1/8”, Drill hole: 1/4”, Max load capacity: 440 lbs Heavy-duty cabinet clamp: Features a cast steel body and jaw with steel T-bar slides and an aircraft-aluminum alignment plate for precision and durability, plus three protective felt pads to prevent surface marring during installation Product description SEUNGCH Professional Cabinet Alignment Clamps, Heavy-Duty 440lbs Face Frame Installation Tool for Woodworking, Includes Two Side Screws & Alignment Plate (Orange) Specifications - Material: Steel and aluminum materials -Color: Oranger -Max Open Width:4.6Inch -Max Load Bearing Capacity:440Lbs Cabinet Installation Tools: This clamp delivers fast, consistent alignment without damaging stiles—streamlining face frame cabinet installation into one simple step. Critical Notice: Always engage the guide lock before drilling. Cabinetry Clamps Cabinet Face Frame Clamps Cabinet Installation Clamps Cabinet T Factory Direct Heavy Duty 304 Stainless Steel/Carbon Steel Drawer Clamp C-clip G Trust me, I tested them and they make installation a breeze.Get yours now! Saves time by eliminating tedious adjustments while protecting your cabinet finish Tool Cabinet: Works with all cabinet types—easy enough for DIYers yet precise for pros.