15X 20-42mm Diamond Drill Bit Set for Tile Granite Cutting

Product name: Diamond Material: metal Color: Silver diameter: . 20mm/0.78 inch 26mm/1 inch 30mm/1.18 inch 35mm/1.37 inch 42mm/1.65 inch Blade length: . 3mm/0.11 inch Length: 50-50mm/1.96 inch -2.16 inch Diameter: . 7-8mm/0.27 inch -0.31 inch : 15pcs Weight: 438g Package Contents: 3x 20mm with 7mm dia. Drill 3x 26mm with 7mm dia. Drill 3x 30mm with 7mm dia. Drill 3x 35mm with 7mm dia. Drill 3x 42mm with 8mm dia. Drill Only the above package content other products are not included. Note: Light 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.