Set of 3 spiral drill bits HSS 4-12 / 4-20 6-30 MM 644.00.02

Step drill bit set 3 pieces:

HSS

grooved spiral

3 flat shanks to prevent slipping in the chuck

Cross stitch + edge breaker

For unalloyed steels up to 700 N/mm²

The advantage of the HSS step drill is that only one drill can cover multiple sizes

Cutting geometry allows drilling and deburring in one operation

Contents: 1 stepped drill every 4-12 / 4-20 / 6-30 mm

in a box of roses
TYPE: BIT WITH STEPS
INTENDED USE: METAL
GAME: YES
MATERIAL: HSS