4pcs/Lot Countersink & Deburring Bits 2-5mm 5-10mm 10-15mm 15-20mm Tool Set Expanding Drill Step Drill Bit 4241;

Features:

A brand-new, unused, unopened, undamaged item
Countersink and Debarring Tool Set
This 4 piece Countersink and Deburring Tool Set is ideal for cutting through metal, wood and plastic quickly and easily.
This is hands down, the best countersink I have never used.
size :2-5 mm 5-10mm 10-15 mm 15-20mm

Package include:

4 x Countersink and Deburring Tool