Lichamp Step Drill Bit Set for Metal Sheet Heavy Duty, 5-Piece HSS Step Up Down Drill Bits Stepper Unibit for Steel Hole, 50 Sizes from 1/8 to 1-3/8 inches, B105RD

Description

Typical Data / Physical Properties:
Brand: Lichamp
Thread Style: Right
Size: 50 Sizes from 1/8 to 1-3/8 inches
Material: High Speed Steel
Finish Type: Black Nitride
Color: Colorful
Angle Point: 118 Degree
Flute Type: Straight
Shank Type: Triangle Round Shank
Case: Aluminum Case
Environment: Indoor and Outdoor

Step drill bits size:
#1: 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″)
#2: 3/16″ to 7/8″ 12 Steps (3/16″, 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″,7/8″)
#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: 1/8″ 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″)
#5: 3/16″ to 1/2″ 6 Steps (3/16″, 1/4″, 5/16″, 3/8″, 7/16″, 1/2″)

Drilling Material:
Sheet metal
Wood chips
Board
Aluminum alloy
Plastic plates

Features:
HSS with black nitride ensures durability and sharpness which can reduce the friction and run cooler.
Drills holes of various sizes without changing bits, Smoother and rounder holes, Prevents metal scurf from flying around for improved safety.
118 degrees split point tip provides faster cutting and prevent sliding while increasing the wear resistance.
Double flutes design allows the particles escape easily for a clean drilling operation.
Great for sheet metal, aluminum sheets, wood chips, plastic and wood board. It's a perfect choice for DIY and engineering use.
Come with aluminum case for easy storage and organizing.

Maintenance Tips:
1. Not compatible with hammer drill.
2. Please do not set drilling speed too high to avoid damages to cutting edge.
3. It is recommended to oil the bit before every use.
4. Please drill a smaller hole to make drilling smoother.