DB-S1 3pcs HSS Spiral Grooved Step Drill Bit 4-12/4-20/4-32

Description :
DB-S1 3pcs HSS Spiral Grooved Step Drill Bit 4-12/4-20/4-32
Specification :
Model: DB-S1
Color : Golden (as picture shown)
Material : High speed steel
Surface :Titanium Plated
Scop : thin iron plate,aluminum,insulation panels,PVC panels 4mm thickness within the timber.

4 - 12 mm 9 Steps (4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm),7cm(L)
4 - 20 mm 9 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm),7cm(L)
4 - 32 mm 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm),10cm(L)

Features : No need for a pilot hole
Titanium coated to reduce friction and run cooler
Large bit has 3 sided shank.
Automatically deburr holes as you drill
High speed steel,durable.
Widely used to cut holes in a variety of material like steel, wood, thin iron, aluminum alloy, insulation boards, PVC sheet,ect

Package Included : 1 x 4-12mm Spiral Grooved Drill
1 x 4-20mm Spiral Grooved Drill
1 x 4-32mm Spiral Grooved Drill

Details pictures :