5-Piece HSS Cobalt Multiple Hole 50 Sizes Step Drill Bits Set High Speed Steel W/Aluminum Case | Wood and Steel Holes Drilling
* Cobalt coating reduces friction and lasts longer than uncoated bits, High speed steel for longer service life.
* Double cutting blades design enables a faster and smoother cutting.
* Automatically deburrs holes while drilling, 3-sided shank prevents slip in drill chuck.
* Includes a protective aluminum case to make the drills not easy to dull.
* The sharpness and titanium coating ensure easily cut through most sheet metal, plastic and of course wood and some other materials with ease.
Specifications:
Model: HSS-42415
Material: HSS (high speed steel)
Finish: Titanium
Suit For: Drill general hardness such as: wood plastic PVC Sheet iron copper aluminum etc.
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″)
Aluminum case size: 152*107*42mm
Package Includes:
5 x Step Drill Bit Set
1 x Aluminum Case
Tips: Water injection cooling while working. It can effectively extend the life of drill bit, especially in continuous drilling.