Adjustable Setting Block: A single device that adjusts to any size between 1/64" and 1-1/16" with an accuracy of 1/64". Easy-to-read scales quickly locate reference heights and set tool height or fence position. Shooting is done quickly and easily. QUICK ADJUSTMENT AND LOCK-IN PRECISION: Use the adjustable setting block to set the exact height in just three steps. Press the quick adjustment button and slide the reference plane up or down to the specified height. Use the trimmer to adjust to the exact size, then tighten the locking knob. Dual scales provide height/depth settings: The "top" scale measures height from the bottom of the base to the top of the reference plate. Use it to set the distance between the bottom of the drill bit and the drill press table. The "bottom" scale measures the distance from the bottom of the base to the bottom surface of the reference plate. It's perfectly compatible with adjusting the height of a router bit or the cutting depth of a table saw. 2 scales provide you with a variety of applications. PREMIUM QUALITY: The base and reference plate are carefully machined from solid aluminum alloy and anodized. The adjusting screw shaft is made of high quality stainless steel. The total cumulative error tolerance of the laser engraving ruler is 0.004 inches. This small and convenient height setting tool will simplify all your machine setups, requires no block combinations or calculations, and doesn't take up any large storage space. COMPACT AND VERSATILE: This convenient adjustable setting block is small yet powerful. You can use it to set router height, table saw depth, drilling depth, saw fence distance, test cutting depth, etc. Material: Aluminum Alloy Color: Red Package Contents: 1 x Setting Block Only the above package contents, other products are not included Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowance is +/-1-3cm.