Description:
Its unique structure of the ladder and bit allows you to open the various specifications of the opening.
No need to use center punch as compared to normal twist drills that are not easy to break.
Deburring, chamfering, enlarging oval holes, twist drill, and didnt do these functions.
Tool Usage: Drill, Bench Drill. It can effectively extend the life of the drill bit, and it works with water cooling,
Shank: 1/4 hex shank
4-20MM (4,6,8,10,12,14,16,18,20MM)
Material: HSS 4241
Size: Approx. 3.1 x 0.8 x 0.8 inches (78 x 20 x 20
Package Includes:
1 x Step Drill, 0.16 - 0.8 inches (4