Professional Specifications: Cabinet Clamp for 1-1/2 inch to 2 inch Thickness (each), 4 inch Opening Capacity; Minimum Jaw Width: 2.95 inch; Maximum Jaw Width: 5.3 inch; Alignment Board Depth: 1.25 to 1.5 inch; Drill: 1/8 inch; Drill: 1/4 inch. It comes with 2 felt pads to secure the clamp face and align the boards to avoid marks on the cabinet. RUST-RESISTANT DURABLE STEEL: Constructed of raw steel with steel sliding T-bars and aluminum alignment plates, the body and side jaws of the cabinet clamp are cast steel for long-term durability and airtightness. Its central aluminum alignment plate allows clips to align the panel frames of two cabinets together from front to back. Accurate and Efficient Drilling: The built-in drill guide will automatically help us lock the position to pre-drill and drill pilot holes more accurately and efficiently. Note: Make sure the drill guide is in the locked position before drilling. EASY TO USE: Consistent, time-saving and non-damaging, these cabinet jig sets easier and faster to align the front frames of two cabinets. Note: Please remember to apply the adhesive pads to the alignment plate and auxiliary arm correctly to avoid leaving marks on the surface of the cabinet. WIDE APPLICATION: Even if you are not a professional installer, this cabinet clamp can definitely be applied to all types of cabinets. It holds the together so you can keep them level and plumb, and there's even a drill guide to help you drill pilot holes for cabinet-to-cabinet fasteners. Name: Woodworking Locker Clip Hole Puncher Material: Aluminum Alloy + Steel Color: Orange Size: 16 x 10 x 8cm Single Weight: 750g Package Contents: 2 x Hole Punch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.