Mastercut SF-1L6DC 1/4" X 5/8" Radius Tree Shape Double Cut Carbide Burr Part Number: SF-1L6DCSKU: MTOSF-1L6DC $25.11 Clear Options Qty: Add to Cart Order In Bulk Add $250.00 worth of items to your cart to qualify for free shipping. Item Details Mastercut Double Cut Radius Tree Carbide Burr with a cutting length of 5/8" and overall length of 6-3/4" has a cutting diameter of 1/4" and has a 1/4" shank.