1/3pcs HSS Cobalt Step Drill Bit Set 4-32mm

Noted:

Due to the light and screen setting difference, the item's color may be slightly different from the pictures.

Please allow slight dimension difference due to different manual measurement.

Product description

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.

Specification :
Color : Black
Material : High Speed Steel(HSS)
Surface : Nitrogen treatment (increasing the hardness and abrasion resistance)
Shank:Triangle round handle
Scop : thin iron plate,aluminum,insulation panels,PVC panels 4mm thickness within the timber.
Type:
4-32mm(4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm),Shank:25 x 10mm
4-20mm(4,6,8,10,12,14,16,18,20mm),Shank:20 x 8mm
4-12mm(4,6,8,10,12mm), Shank:20 x 6mm