4Pcs Metal Drill Bit HSS Titanium Coated Countersink and Deburring Tool Set

Slotted taper for chatter-free deburring and countersinking. Made from 90 ° HSS content. Through slot chip removal prevents chips from clogging in workpiece. Gives best results at low cutting speeds in steel, wood and plastic and light metals. This 4 piece Countersink and Deburring Tool Set is ideal for cutting through metal, wood and plastic quickly and easily [Name]: 4pcs Countersink & Deburring Bits 2-5-10-15-20mm Tool Set [Material]: HSS 4241 [Surface treatment]: Titanium Coated [Package included]: 1x 2-5mm countersink and deburring drill bits 1x 5-10mm countersink and deburring drill bits 1x 10-15mm countersink and deburring drill bits 1x 15-20mm countersink and deburring drill bits [Note]: When edge processing need to add water or cold oil, responsible for the drill will burn