ITEM NAME:4Pcs Carbon Steel Wood Drill Bit Set,1/4 Hex Shank Woodworking Carbon Steel E4U9 4Pcs Carbon Steel Wood Drill Bit Set,1/4 Hex Shank Woodworking Carbon Steel E4U9 Use standard cutters to eliminate imperfections in wood. 4-piece plug cutter set makes perfect plugs for counter-bored holes. The cutter set achieves excellent finish when using same timber. Standard 1/4-Inch hex shank is quick change compatible For bench drill, drill and wood plug cutter drill Makes perfect plugs for counter-bored holes, can also be used for reclaiming wood Specifications: 6mm, 10mm, 13mm, 16mm 6mm: shank diameter 6.35mm, can take wood diameter 6mm, can take wood length within 22mm 10mm: shank diameter 6.35mm, can take wood diameter 10mm, can take wood length 22mm 13mm: shank diameter 6.35mm, can take wood diameter 13mm, can take wood length 22mm 16mm: shank diameter 6.35mm, can take wood diameter 16mm, can take wood length 22mm colour:black Material:Carbon steel Package Contents: 4 * Woodworking drill head