4-32mm Spiral Grooved Step Drill Bit Nitrogen Coated Step Drill

Color: Black (as picture shown)

Material: High Speed Steel

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

Total Size: 30 x105mm
 

No need for a pilot hole.

Nitrogen coated to reduce friction and run cooler.

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.