Description: Carbon steel is durable. Precision production, smooth surface. Drill bits for intercepting wood block. Material: Carbon steel Shank?Approx. 10mm/ 0.39inch Specification: 1/4'': Take wood(dia) Approx. 6mm/ 0.24inch 3/8'': Take wood Approx. 10mm/ 0.39inch 1/2'': Take wood Approx. 13mm/ 0.51inch 5/8'': Take wood Approx. 16mm/ 0.63inch Package Includes: 4 Pieces drill bits Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Suitable for bench, speed not too fast, otherwise will smoke, charred, etc
