Drillpro 3Pcs HSS Round Shank Titanium Coated Quick Change Step Drill Bits 3/16-1/2 1/8-1/2 1/4-3/4

Descriptions:

Drillpro 3Pcs HSS Round Shank Titanium Coated Quick Change Step Drill Bits 3/16-1/2 1/8-1/2 1/4-3/4 Inch

Specification:

Product Name	Step Drill Bits
Brand	Drillpro
Material	High Speed Steel 4241
Suitable For	Used for the hardness of the material which is below 25?￣, like iron borad, steel board, PVC board, Insulation board, etc.
Surface	Titanium Plated
Shank	Round
Scop	Thin iron plate,aluminum,insulation panels,PVC panels 4mm thickness within the timber.
Quantity	1 Pc x Step Drill Bits

Size	Drilling Range(?| inch)	Hole	Flute Height(mm)	Height of Shank (MM)	Shank Diameter(?| mm)
3/16-1/2	3/16,1/4,5/16,3/8,7/16,1/2	6	35	25	6
1/8-1/2	1/8,3/32,5/32,7/32,1/4,9/32,5/16,11/32,3/8,13/32,7/16,15/32,1/2	13	52	25	6
1/4-3/4	1/4,5/16,3/8,7/16,1/2,9/16,5/8,11/16,3/4	9	50	25	10

Features:
- High speed steel material, more durable.
- Titanium coated to reduce friction and run cooler
- No need for a pilot hole,? can automatically deburr holes as you drill.
- Special step stucture, can drill different size holes, 1 step drill can be used as 1 box of drill bit.
- Working with water cooling, can effectively extend the service life of bit, drilling speed 250--400 recommended.
- 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 Pc x?	3/16-1/2 Step Drill Bit
1 Pc x	1/8-1/2 Step Drill Bit
1 Pc x	1/4-3/4 Step Drill Bit

More Details: