6pcs 4241 High Speed ​​Steel Step Drill Bit Set with Titanium Coating - For DIY, Plastic, Wood, Metal, Aluminum, Iron

6pcs 4241 High Speed ​​Steel Step Drill Bit Set with Titanium Coating - For DIY, Plastic, Wood, Metal, Aluminum, Iron

Quality materials: 4241 high speed steel, titanium coating to reduce friction when cutting, easy cutting 1-5mm iron, aluminum, wood, plastic, long service life. Proven performance and long life when drilling holes

Multiple Sizes: Stepped drill bit with five different sizes to meet different drill size requirements.

【Auto Damping】: when the level is pressed against the surface of the object, a strong impact force is automatically produced, and the adjustable cover can adjust the impact force. The surface is very non-slip and allows precise positioning without worrying about errors.

【Construction Features】Slbrille drill bit with double groove and smooth design, avoid cutting scraps. Three side handles prevent slipping, and each step on the graduated drill is marked with corresponding size indications.

【Easy to Use】Double-edged design allows for faster and smoother drilling, no not let you feel stagnation and resistance when you use it. It has the best speed and accuracy. When working the step drill, pour water, can effectively extend the service life.

Sizes:

No.1: 6 levels from 3/16" to 1/2" 6 (3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'')

#2: 13 levels from 1/8" to 1/2" (1/8", 5/32", 3/16'', 7/32", 1/4'', 9/32", 5/16", 11/32", 3/8'', 13/32", 7/16'', 15/32" , 1/2'')

No. 3: 9 levels from 1/4" to 3/4'' 9 (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8" , 11/16", 3/4")

No. 4: 10 levels from 1/4" to 1-3/8"' 10 (1/4'', 3/8", 1/2", 5/8", 3/4", 7/8", 1" , 1-1/8", 1-1/4", 1-3/8")

#5: 12 levels from 3/16" to 7/8" 12 (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8")

Package content:

1 step drill bit 1/4-1-3/8 .

1 step drill 3/16-7/8.

1 step drill 1/4-3/4.

1 step drill 1/8 -1/2.

1 step drill bit 3/16-1/2.

1 Automatic Center Punch

1 aluminum box.