1PC/3PCS 4-32mm 4-20mm 4-12mm HSS Cobalt Step Drill Bit Nitrogen Spiral Grooved Hole Cutter
$29
Size 4-32mm/Size 3pcs (2.00)/
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Description
1PC or 3PCS 4-32mm 4-20mm 4-12mm HSS Cobalt Step Drills Nitrogen High Speed Steel Spiral
Specification
Material:High Speed Steel 4241
Surface:Nitrogen treatment
Notch Type:Spiral Notch
Shank:Triangle Shank
Sizes
1 * 4- 32 mm in 15 steps (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 mm)
1 * 4-20 mm in 9 steps (4, 6, 8, 10, 12, 14, 14, 18, 20mm)
1 * 4-12 mm in 5 steps (4, 6, 8, 10, 12mm)
Application:for Drilling Carbon Steel Sheet Iron Insulation Boards
Features
The most popular job that uses step drill bits is sheet metal working.
People also use step drill bits on auto repair projects and apply them as countersinks.
The Migiwata step bits come to a point and are thus self-starting. No need to use center punch.
They are more durable and not prone to break compared with twist drills.
Quantity
1pc(4-32mm) or 3pcs/set (optional)
Warning
1. Due to manual measurement, please allow a bit error, thank you
2. Due to shooting problems such as light, there will be chromatic aberration, please be careful.
| Weight | 0.25 kg |
|---|
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