Combination Drill & Taps
Description:
metric staircase drill 4-12,4-20,4-32; 3pcs 4-12/20/32mm HSS Step Drill Bits Set Spiral Grooved Hole Cutter
Specification:
Type: step drill
Material: 4241 high-speed steel
Size:
4-12mm 5 steps(4mm,6mm, 8mm, 10mm, 12mm)
4-20mm 9 steps(4mm, 6mm, 8mm, 10mm, 12mm,14mm, 16mm,18mm, 20mm)
4-32mm 15 steps(4mm, 6mm, 8mm, 10mm, 12mm,14mm, 16mm,18mm, 20mm, 22m, 24mm, 26mm, 28mm, 32mm)