Unibit 3pc Set Titanium #1-2-3 Step Drill Bit Set

The Unibit® step drill bit features as single radial concave flute design for smooth, even cutting and virtually round holes. Ideal for drilling holes in steel, copper, brass, aluminum and other thin materials. • 1/4" shanks • Self-starting • Hardened industrial grade high speed steel with super tough Titanium Nitride coating. 3 piece set includes: • #1 Bit drills 13 holes: 1/8" to 1/2" in 1/8" steps • #2 Bit drills 6 holes: 13/16" to 1/2" in 1/16" steps • #3 Bit drills 9 holes: 1/4" to 3/4" in 1/16" steps Manufacturer: VISE-GRIP / QUICK-GRIP / UNIBIT / PROSNIP