5pcs HSS Cobalt 50 Sizes Step Drill Bit Set with Aluminum Case

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5pcs HSS Cobalt 50 Sizes Step Drill Bit Set with Aluminum Case

5pcs HSS Cobalt 50 Sizes Step Drill Bit Set with Aluminum Case

  • Step drill allows to cut several holes with one drill without changine bit constantly.
  • Coated with cobalt, this step drill is more durable and better heat resistance
  • Two-flute design enables a faster, more stable and smoother cutting .
  • Compared with the common drill, this step drill can deburrs holes while drilling and 3-sided shank prevent slipping in drill chuck. Step drill, also called multifuctional drill, can cut straight-flute, spiral-flute, single-flute.

Size:
#1: 3/16″ to 1/2″ 6 Steps (3/16”, 1/4”, 5/16″, 3/8”, 7/16”, 1/2”) 
#2: 1/8″ to 1/2″ 13 Steps (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”) 
#3: 1/4″ to 3/4” 9 Steps (1/4”, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″) 
#4: 1/4″ to 1-3/8″ 10 Steps (1/4”, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1″, 1-1/8″, 1-1/4″, 1-3/8″) 
#5: 3/16″ to 7/8″ 12 Steps (1/4”, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″)” 

Package include:5 different size bits
One aluminum case

List Price: $ 99.99

Price: $ 17.99

DRILLPRO Titanium Step Drill Bit High Speed Steel 13 Steps Hex Shank 6-35MM

DRILLPRO Titanium Step Drill Bit High Speed Steel 13 Steps Hex Shank 6-35MM

  • ★INCLUDES 13 STEP SIZES: 6mm, 8mm, 10mm, 12mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm
  • ★HEXA-FLATTED SHANK: fits into power tools chuck securely and eliminates slip.
  • ★TITANIUM | HIGH SPEED STEEL: classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal.
  • ★EASY DRILLING: Two-fluted design provides faster, smoother cutting;Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces
  • ★IDEAL For DIY: Tiny Home and General Building / Engineering Using.

Features:
1, The ladder of its unique structure, a bit can open a variety of specifications of aperture.
2, Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken.
3, Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable,
but it is possible.
4, The use of tools: drill, bench drill.Work while water cooling, can effectively extend the service life
of drill bit, recommend drilling rate of 250-250 RPM.

Specification:
Size: 6-35 mm 6,8,10,12,16,18,20,22.25,28,30,32,35mm
Shank:6mm(dia),30mm(L)
Total:110mm(L)
Allow 1-3mm measurement error.
Material:High speed steel 4241

Package include:
1X Hex Titanium Step Drill

List Price: $ 22.64

Price: $ 13.25

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