Irwin Tools Irwin 11104 Unibit4M 4-Millimeter to 22-Millimeter by 3/8-Inch Shank Step Drill Bit

Drill Multiple Hole Sizes with One Bit. IRWIN® Unibit® Step Drill Bits make precise clean holes in a variety of thin materials including stainless steel, copper, brass, aluminum, plastic, and laminates. Offered in single and double flute designs, Unibit® Step Drill bits have precise step control and SpeedPoint™ tip for fast starts. Unibit® double-flute designs accelerate your drilling with 2X Faster Drilling* versus a single-flute design.

FEATURES

• SPEEDPOINT™ TIP FOR FAST STARTS
• DOUBLE FLUTE DESIGN, 2X FASTER DRILLING*
• USE WITH AN IMPACT OR STANDARD DRILL

SPECIFICATIONS

• DIAMETER : 20 mm - 40 mm
• NUMBER OF STEPS : 10 Steps
• MATERIAL : High Speed Steel 
• SHANK TYPE : Round
• TOOL FLUTE TYPE : Spiral
  
• UPC : ‎038548111049
• WEIGHT : .09 lb
• MEASURMENT SYSTEM : Metric , Imperial