DRILLPRO 4Pcs HSS Titanium Coated Step Drill Bits Set Total 38 Sizes SAE Size Bits

Step Drill
Although expensive, step drills can cut a variety of diameters and are great for thin materials like sheet metal. These drill bits have a stepped profile and increase in size the deeper the hole. The downside to step bits is that they do not work on materials thicker than 3/16 of an inch. Also, they might require a pilot hole before drilling.

Warning: When you use these drill bits on aluminum. The coating can easily end up welded to the metal.

Features:
●The sharpness and titanium coating ensure easily cut through most sheet metal, plastic and some other materials with ease.
●Double cutting blades design enables a faster and smoother cutting.
●Can be drilling for wood, plastic and aluminum, copper, steel.
●High speed steel for longer service life.

Specification:
Color : Gold
Material : High Speed Steel
Surface : Nitrogen treatment (increasing the hardness and abrasion resistance)
Scop : thin iron plate, aluminum, insulation panels, PVC panels 4mm thickness within the timber.
Model: Bit #1 = 1/4-1/3/8 (10 steps) bit #2 = 1/4-3/4 (9 steps) bit #3 = 1/8-1/2 (13 steps) bit #4 = 3/16 - 1/2 (6 steps)

√What is in the package?
1 x 1/4-1-3/8" HSS Step Drill
1 x 1/4-3/4" HSS Step Drill
1 x 1/8-1/2" HSS Step Drill
1 x 3/16 - 1/2" HSS Step Drill

√Why Choose DRILLPRO
â–¶Good quality and reliable brand
â–¶24-hour feedback excellent customer service
â–¶Any purchase doubt please ask in the Q&A, we will answer it as soon as possible