Product Name: Vacuum Brazed Diamond Drill Core Bits Sets Hole Saw Mixed size plus Finger bits Quantity: 8pcs/kit Note: Kit Contains:7pcs(6/6/8/10/19/28/35mm)drill bits and 1pc 10mm finger bits, totally 8pcs/box Specification: 1, All Diamond core bits : Diameter 6/6/8/10/19/28/35mm; 5/8-11 connection; 6/6/8/10mm: Total Length 62MM; Max working depth 35MM; Diamond height 10mm; 19/28/35MM: Total Length 75MM; Max working depth 50mm; Diamond height 15mm; 2, Diamond finger bits: Diameter 10mm; 5/8-11 connection; Total Length 75mm; Workable length 50MM; Grit #50/60; Feature: Dry or wet drilling Having Wide Application: For porcelain tile granite marble stone masonry brick All bits are produced in Vacuum Brazed technology. Vacuum Brazed technology provides longer working life, Fast and smooth drilling Less Chipping, Minimizing breakage, less heat generation, Better finish quality ===============end======================