Carbon steel 90 degree round shank five-blade chamfering tool $ 5.22 Model: 1style: 3007 (12,16,19MM round handle) 2style: 3006 (12,16,19MM hexagon handle) Type: Drill Material: high carbon steel Full length: 50 (mm) Product alias: chamfering knife countersink drill woodworking hole opener Specification: 12/16/19mm Series: Chamfer Category: Countersink Surface treatment: blackening Heat treatment: whole high frequency quenching, improve hardness Scope of application: This product is suitable for chamfering of wood and plastic plates with low hardness. Do not use this product to chamfer metal!!!