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Feature

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Type:Core Drill Bit
DIY Supplies:Electrical
Use:Metal Drilling
Material:High Speed Steel

Description

3PCSHSS Step Cone Titanium Coated Drill Bits Tool Hole Cutter Set4-12mm 4-20mm 4-32mm Wood Metal Drilling Power Tools with Nylon BagFeature:

-100% brand new and high quality.

-Drop forged, heat treated, high speed steel, fully polish.

-Take the guessing out of drilling by supplying the proper depth for you.

-Use for home and industrial.

Specification:

Size Include: 4-12mm(5 Step), 4-20mm(9 Step), 4-32mm(15 Step)

Material: HSS Steel

Quantity: 1 Set(3 PCS)

Finish: Titanium

Length:

4-12mm Length: Approx. 68mm/ 2.68"

4-20mm Length: Approx. 74mm/ 2.91"

4-32mm Length: Approx. 103mm/ 4.06"

The 3 Cutters Come in the Following Sizes:

4-32mm (15 Step: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm)

4-20mm (9 Step: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)

4-12mm (5 Step: 4mm, 6mm, 8mm, 10mm, 12mm)

Package Included:

1 Set (3PCS) x HSS Steel Drill Bit

When drill the hardness and larger diameter hole, must cooling the bit with cool water, recommend the drilling rate for 120-240 is suitable for processing 6 mm and below plate, the bits are high speed steel material, drilling rate are 120/minute, expanding to more than 20 mm hole, drilling rate shall not be higher than 400 RPM and used water cooling.

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