Set 5 mũi khoan HSS bọc titan chuyên dụng cho máy khoan gỗ tại Lotte Market

Giới thiệu Set 5 mũi khoan HSS bọc titan chuyên dụng cho máy khoan gỗ tại Lotte Market

[50 Size In 5 PCS ]
The step drill bit set includes 5 standard HSS step drill bits that can replace 50 individual drill bits. A drill bit can be used as a substitute for multiple drill bits to meet different needs. You can process 50 different kinds of diameter holes, which greatly saves you a lot of trouble and space. That means, 50 sizes are condensed into 5 pcs, making the drilling become more simple and practical.
[HSS and Titanium Coating]
Made of strong and durable high speed steel coated with titanium , HSS make it last longer than others, titanium coating ensure easily cut thin through steel sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease, and it can automatically deburr holes while drilling to keep the drill bit clean.
[Double Cutting Blades and Three-Sided Shank]
Double cutting blades and X-type openings design ensures a faster and smoother cutting, and 3-sided shank design prevents slip in drill chuck.
[135 Degree Spilt Point Tip and Two-Flute Design]
The split point tip is at 135 degrees to increase the cutting speed with self-centering and prevent walking, which allows you to cut faster. The two flute design also provides a faster and smoother cutting. And it clears chips faster, allows the material particles escape easily for a much more clean drilling operation. Just provided with small pressure, the step drill bit set can easily cut through most types of sheet mental.
[Hard Automatic Center Punch]
The thimble head is made of carbide tipped bit and its impact resistance is 10 times that of ordinary center punches;before drilling, automatic center punch can mark the positioning hole to prevent the drill and the screw from sliding.

Specifications:
Material: High Speed Steel 4241
Application：Suitable for workpieces with hardness below 25 degrees
Cutting material: Thin iron plate, aluminum material, insulating board, PVC board wood( the recommended thickness is within 5mm)

Sizes:
#1 3/16” -1/2” 6 Steps (3/16”, 1/4”, 5/16”, 3/8”,7/16”,1/2”)
#2 1/8” -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” -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” -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” -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”)

4-12mm 5 Steps (4mm,6mm,8mm,10mm,12mm)
4-12mm 9Steps (4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm)
6-18mm 7Steps (6mm,8mm,10mm,12mm,14mm,16mm,18mm)
4-22mm 10Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm)
6-35mm 13Steps (6mm,8mm,10mm,13mm,16mm,19mm,21mm,23mm,26mm,29mm,31mm,33mm,35mm)

Package included
1 x 1/4-1-3/8 Step Drill
1 x 3/16-7/8 Step Dril
1 x 1/4-3/4 Step Drill
1 x 1/8-1/2 Step Drill
1 x 3/16-1/2 Step Drill
Or
1 x 4-12mm Step Drill
1 x 4-12mm Step Drill
1 x 6-18mm Step Drill
1 x 4-22mm Step Drill
1 x 6-35mm Step Drill