Irwin® Unibit®, HSS Step Drill, 3/16 in to 7/8 in, 12 Steps

Description

Irwin® Unibit®, 15104, Hss Step Drill, Self-Starting, Imperial, #4T Letter/Wire, 3/16 in Diameter Minimum Hole, 7/8 in Diameter Maximum Hole, 3-1/4 in Overall Length, 12 Steps, 1/16 in Step Depth, 12 Hole, 1 Flutes, 12, 3/8 in Shank, 3-Flat Shank, Self-Starting SpeedPoint®, HSS Cutting Edge, TiN Coated, Natural White, Applicable Materials: Aluminum, Brass, Copper, Laminates, Plastic and Stainless Steel

Features:

• Single flute cutting edge for greater control through steps
• 3 flatted shank prevents slipping in drill chuck
• New speed point tip penetrates faster than previous Unibit® and prevents walking
• Titanium nitride coating resists heat and friction, extending the cutting edge life up to six times longer than other high speed steel step drill bits
• Geometry of single flute cutting edge drills true, round holes and provides maximum step control
• Laser etched sizes inside flute for easy and permanent hole size identification
• SpeedPoint® tip for fast starts
• Hex shaped shank secures easily in drill
• #1, #2, #10 and #12 sizes have a quick change shank

Applications:

For drilling holes into thin materials

Applicable Materials	Aluminum, Brass, Copper, Laminates, Plastic and Stainless Steel
Color	Natural White
Cutting Edge Material	HSS
Finish	TiN Coated
Hole Sizes Cut	12
Letter/Wire Size	#4T
Material	HSS
Maximum Hole Diameter	7/8 in
Minimum Hole Diameter	3/16 in
Number of Flutes	1
Number of Hole Sizes	12
Number of Steps	12
Overall Length	3-1/4 in
Point Type	Self-Starting SpeedPoint®
Shank Size	3/8 in
Shank Type	3-Flat
Manufacturer	Irwin® Unibit®