Fangrui Product Details This Pin Fixture Comes With A 1/2 Inch X 11.8 Inch Drilled Drill, Designed For Precise Drilling, And Is Ideal For Mounting Floating Shelf Stands And Hidden Shelf Stands. The Installation Process Is Smooth And Accurate This Pin Fixture Kit Not Only Drills 1/2-inch (approximately 1.3 Cm) Holes For Floating Racks, Hidden Brackets And Fireplace Fireplaces, But Also Includes Drill Bits With 1/4-inch, 5/16-inch And 3/8-inch Holes, Providing Excellent Versatility For A Variety Of Woodworking Tasks Pin Clamps Are Easy To Use - Just Twist And Fix, With Automatic Centering, Ensuring , Straight Holes Are Achieved Every Time, Providing Accurate And Stable Results The Sides Are Equipped With Practical Line Markings, And Pin Fixtures Help You Easily Mark The Precise Offset And Of Woodworking Tasks For Increased Efficiency And Accuracy Made Of High-strength Aluminum Alloy, It Is Made Of Strong, Wear- And Heat- High-quality Stainless Steel Bushings.it Handles Heavy-duty Drilling Tasks And Provides Long-lasting Pe