Products

3PCS 4-12/4-20/4-32mm Metric Spiral Flute Step Drill Bit Set With Wooden Box

Short Description:

1. Raw Material: HSS 4241/4341/M2/M35
2. Shank: Triangle Shank
3. Flute: Spiral Flute
4. Process: Fully Ground
5. Size: The Metric System / British System

Send email to us

Product Detail

Product Tags

Product Features

1.HSS step drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer.
2.No center punch is needed—the aggressive 135° and 118° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander".
3.Precision ground point, flutes, body, clearance and drill diameter for the ultimate in accuracy and performance.
4.Hex-shank drill bits design have a hexagonal shank that provides maximum surface contact with a drill chuck on handheld power tools. This prevents the bits from slipping in the chuck during drilling. Drill bits with a hex shank insert into a standard 3-jaw drill chuck or a drill chuck specifically designed for hex shanks.
5.Perfect Step Drill Bits suitable for drill holes in various material: within 3mm/0.12 inch (Iron Plate, Copper Plate, Aluminum Plate); within 5mm/0.2 inch (Wood, PVC sheet, Insulation Boards).
Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc

Product Parameters

Step Drill Bits
Material	HSS 4241, HSS 4341, M2, M35
Surface Treatment	Bright finished, Tin-coated, Cobalt coated, Black-oxidized
Shank	Round Shank, Three-Side Shank, Hex Shank, Hex Shank With a Step
Flute	Straight Flute, Spiral Flute
Process	Fully Ground
Application	Aluminum, Iron, Carbon Steel, Stainless steel, Plastic, etc.
HSS4241 2mm Aluminum, Iron, 5mm Plastic HSS6542/M2 5mm Aluminum, Iron, Carbon Steel, Plastic HSSCO/M35 5mm Aluminum, Iron, Carbon Steel, Stainless Steel, Plastic

Product Highlights

Universal Design

The HEX shank is a great universal fit that will give you confidence while you work knowing that your drill bit is securely in place.

Engraved Sizes

Easily identify which size you need with the contrasted, laser engraved sizes inside the step drill bit flute size1/4”-1-3/8”.

Increased Cutting Speed

The split point tip is at 135 degrees which allows you to cut faster throughout multiple uses. This also ensures that you get sharp cutting on a wide variety of materials.

Recommended Drilling Speeds In Metal

Use the correct drill speed to ensure the ideal drill bit performance in the material being drilled.

Drill Size
	1MM	2MM	3MM	4MM	5MM	6MM	7MM	8MM	9MM	10MM	11MM	12MM	13MM
STAINLESS STEEL	3182	1591	1061	795	636	530	455	398	354	318	289	265	245
CAST IRON	4773	2386	1591	1193	955	795	682	597	530	477	434	398	367
PLAIN CARBON STEEL	6364	3182	2121	1591	1273	1061	909	795	707	636	579	530	490
BRONZE	7955	3977	2652	1989	1591	1326	1136	994	884	795	723	663	612
BRASS	9545	4773	3182	2386	1909	1591	1364	1193	1061	955	868	795	734
COPPER	11136	5568	3712	2784	2227	1856	1591	1392	1237	1114	1012	928	857
ALUMINIUM	12727	6364	4242	3182	2545	2121	1818	1591	1414	1273	1157	1061	979