Hex 12, 16, 19Mm Countersink Power Drill Bit Bore Set for Wood Metal (1/4-inch) - Set of 3

Description: heat treated carbon steel for strength suitable for all hand and power drills contains all popular sizes of countersink bits suitable for hardness lower material,Description: heat treated carbon steel for strength suitable for all hand and power drills contains all popular sizes of countersink bits suitable for hardness lower material, such as wood 5 flutes chamfering device drill bit shank: 1/4" hex material: hss surface treatment: titanium quantity: 1 set 3pcs (12, 16, 19mm ) package includes: 1 set chamfering device drill bit(3pcs) tip: product colour may slightly vary due to photographic lighting sources or your monitor settings also allow for 1 to 2 cms difference in the size due to different measuring methods.