915 Generation 6-Pieces Quick Change Spiral Grooved Step Drill Bit Set

[QUALITY]: Made with heavy duty High Speed Steel for powerful punching and drilling of clean holes.
[DURABLE]: Coated in Titanium Nitride for maximum durability.
[EFFICIENT]: 1/4 inch Quick Change Hex to fit most drills and drill presses securely.
[CONVENIENT]: Two-Flute Spiral Grooved Design deburrs chip, dust, and debris for faster and smoother cutting.
Titanium Nitride coating ensures the bit stays cool, reduces friction, and stays durable to last through countless drills. Quick Change Hex makes it easy for bit switches and is compatible with most impact power tools, electric drills, and bench drills
135 degree Split Tip increases cutting speed with -centering and prevents walking 2 Flute Spiral Design clears particles while drilling to decrease friction and heat for a cleaner and quicker process
5 pieces and 50 Step Drill Bit Sizes:
1/8 inch - 1/2 inch 1/32 inch increments (13 step drill)
3/16 inch - 1/2 inch in 1/16 inch increments (6 step drill)
3/6 inch - 7/8 inch 1/16 inch increments (12 step drill)
1/4 inch - 3/4 inch 1/16 inch increments (9 step drill)
1/4 inch - 1-3/8 inch 1/8 inch increments (10 step drill)
Colour:blue
Material:High speed steel Package Contents:
5 * Quick Change Spiral Grooved Step Drill Bit Set
1 * aluminum box Only the above package content, other are not included.
Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.