Jadever 3 Pcs step drill bit set

3 Pcs step drill bit
set
3 Pcs step drill bit set
1pcs 4-12mm 2mm/step Shank diameter 6mm
1pcs 4-20mm 2mm/step Shank diameter 8mm
1pcs 4-32mm 2mm/step Shank diameter 10mm
Material HSS
Applies to Steel Plate thickness≤3mm
Packed by double blister