5Pcs High Speed Steel Step Drill Bits Multiple Holes Cutter Tools Set With High Hardness

Descriptions:
These step drills are made from premiumhigh speed steel for high hardness and good abrasion resistance. Itautomatically deburrs holes as you drill, widely used for thin iron plate,aluminum plate, PV plate, sheet metal opening and reaming.
 
Features:
Automatically deburrs holes while drilling,no need of pre-drilling hole.
Faster, smoother and cleaner cutting, everystep had a clear diameter of depth.
Made from premium high speed steel, it is of highhardness and good abrasion resistance.
They also help to enlarge existing holes.
Step drills are used for thin iron plate,aluminum plate, PV plate, sheet metal opening and reaming.

 
Specifications:
Condition: 100% Brand New
Material: M2 High Speed Steel
#1: 3/16" to 1/2" 6 Steps(3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'')
#2: 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'')
#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: 1/4" 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")
#5: 3/16" to 7/8" 12 Steps(1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8",11/16", 3/4", 13/16", 7/8")
Weight: Approx. 305g
 
Package Included:
5 * Step Drill Bits
 
Note:
1. Please allow 0~1 inch error due tomanual measurement. Thanks for your understanding.
2. Monitors are not calibrated same, itemcolor displayed in photos may be showing slightly different from the realobject. Please take the real one as standard.