Feature

●Increase the cutting speed through automatic centering to prevent walking
●1. Unique ladder structure, various standard size drills are engraved with holes, and a box reaches the ladder drill.
●2. The center punch is not used, it is easy to break, and the step drill specification is applicable.
●3. Deburring, chamfering, enlarging oval holes
●4. Type: core bit


Description

Remove debris faster and discharge particles easily
Feature:
1. Unique ladder structure, various standard size drills are engraved with holes, and a box reaches the ladder drill.
2. The center punch is not used, it is easy to break, and the step drill specification is applicable.
3. Deburring, chamfering, enlarging oval holes

specification:
Type: core bit
Materail: HSS high-speed steel
Coating: titanium
Handle: hexagon
Handle length: 25mm
size
6 steps from 3/16" to 1/2" --- (3 / 16,1 / 4,5 / 16,3 / 8,7 / 16,1 / 2)
9 steps from 1/4" to 3/4" --- (1 / 4,5 / 16,3 / 8,7 / 16,1 / 2,9 / 16,5 / 8,11 / 16,3 / 4)
13 steps from 1/8" to 1/2" --- (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)

note:
Due to manual measurement, please allow an error of 1-3mm.
Due to the differences between different monitors, the picture may not reflect the actual color of the project.

Package Included:
3 high speed steel step drills