HSS Metric Straight Spiral Award-winning store Twist Step Bit Pagoda Drill Flute Sha $21 HSS Metric Straight/Spiral Twist Step Drill Bit Flute Pagoda Sha Industrial Scientific Cutting Tools $21,HSS,Bit,www.accessiblestreamers.com,Sha,Step,Industrial Scientific , Cutting Tools,Twist,Drill,Metric,Straight/Spiral,/Nazarean1173684.html,Pagoda,Flute $21,HSS,Bit,www.accessiblestreamers.com,Sha,Step,Industrial Scientific , Cutting Tools,Twist,Drill,Metric,Straight/Spiral,/Nazarean1173684.html,Pagoda,Flute HSS Metric Straight Spiral Award-winning store Twist Step Bit Pagoda Drill Flute Sha $21 HSS Metric Straight/Spiral Twist Step Drill Bit Flute Pagoda Sha Industrial Scientific Cutting Tools
Attention:Because of the outer diameter of each step of the step drill is gradually expanded,then the corresponding cutting resistance and linear velocity will also be gradually increased. Owing to the step drill is completely dependent on the inclined edge that is only with 1mm length,If the feed speed is too fast when drilling,it will be easily to be annealing caused by abrasion of the oblique edge. Please give a downward force when drilling, do not press down too hard to avoid the edge wearing. Please note that stainless steel and spring steel are not applicable. Not for quenching.
Straight Groove Step Drill :
3-12mm Length: Approx. 7.7cm
4-12mm Length: Approx. 6.7cm
4-20mm Length: Approx. 7.7cm
4-32mm Length: Approx. 10cm
Spiral Groove Step Drill :
4-12mm Length: Approx. 6.3cm
4-20mm Length: Approx. 7.2cm
4-32mm Length: Approx. 10cm
Package includes: 1 X 3-12 Straight Groove Step Drill
1 X 4-12 Straight Groove Step Drill
1 X 4-20 Straight Groove Step Drill
1 X 4-32 Straight Groove Step Drill
1 Set (3-12 + 4-12 + 4-20 ) Straight Groove Step Drills with Bag
1 Set (4-12 + 4-20 + 4-32 ) Straight Groove Step Drills with Bag
1 X 4-12 Spiral Groove Step Drill
1 X 4-20 Spiral Groove Step Drill
1 X 4-32 Spiral Groove Step Drill
1 Set (4-12 + 4-20 + 4-32 ) Spiral Groove Step Drills with Bag
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