Name	5PCS HSS 4241 material step drill bit set
Material	HSS 4241, HSS 4341, HSS M2(6542) and M35 for choose. This is HSS 4241 material.
Flute	double straight flute. You also can choose spiral flute
Tip degree	135 degree with split point
Surface treatment	amber finish,
5PCS HSS 4241 material step drill bit set Size	inches size from 1/4 – 1 3/8; from 3/16 - 7/8; from 1/4-3/4; from 1/8-1/2, from 3/16 – 1/2;
Mark	mark size on flute by lasering. And mark LOGO or brand on shank.
Shank	round/straight shank with Tri-flats.
Package	5PCS packed in a aluminum box;
Brand	GMTOOL, We also accept custom customers' brand (OEM).

● 50 Sizes in 5 Bits for Ultimate Versatility: 5PCS HSS 4241 material step drill bit set does it all. Get 50 most-needed hole sizes from just 5 step bits, eliminating the need for a bulky drill bit collection.
● Amber finish HSS for Extreme Hardness: Made of high-speed steel with amber finish, these bits resist heat and abrasion, effortlessly drilling through stainless steel, iron, and hard metals.
● Self-Centering Tip for Precise Starts: The 118° split point prevents bit slippage, ensuring pinpoint accuracy and cleaner holes from the very start
● Wide Compatibility on Various Materials: The 5PCS HSS 4241 material step drill bit set for metal, stainless steel, aluminum, plastic, and wood. Feel confident drilling into anything-your DIY projects just got easier
● Protected in an Aluminum Case: Your step drill bit set stays organized and safe in a sturdy, portable aluminum case.(6"x4.45"x1.7")
● Tri-flats Shank: round shank with 3-falts, which can be easily fit into power driver, drill and press drill,
● Ideal For Diy & Professional Use - Whether you're a DIY enthusiast or a professional, this step drill bit set is perfect for various applications, including drilling in sheet metal, aluminum, copper, plastic, and more. Not only can it enlarge holes, but it also deburrs, chamfers, and cutting.

Usage: take out the drill bit which you want size by carefully and install it in drill machine, clamp it tightly by key, then adjust the speed around 550 RPM, Apply pressure uniformly downward.

KIND TIPS - To prevent overheating and potential damage to the drill bits, always use cutting oil or spraying water during operation. Proper cooling extends the life and efficiency of the bits.

High-Speed Steel (HSS step drill bit) step drill bit is a specialized drill bit that integrates multiple cutting diameters into a single tool, named for its stair-like profile. It is primarily used for drilling holes of varying diameters in sheet materials (such as metal or plastic plates) in a single operation, or for creating countersunk or stepped holes for flat-head screws and rivets.

Primary Applications

Sheet Metal Fabrication

Drilling mounting holes in steel, stainless steel, or aluminum sheets.

Pipe and Bracket Installation

Creating countersunk holes for bolts or rivets so fastener heads sit flush.

Electrical Industry

Drilling holes in electrical panels, enclosures, and cable trays.

Automotive and Machinery Repair

Working on sheet metal parts or thin-walled components.

Plastic and Composite Material Processing

Also effective, producing clean hole edges.

Our Mission & Vision

To revolutionize the power tools and accessories market by delivering superior-quality products that enhance productivity, efficiency, and safety for users worldwide.

To be a globally recognized leader in drill bits and power tool accessories, renowned for innovation, excellence, and sustainability, while contributing to the advancement of Malaysia's manufacturing sector.

Our Values

Innovation

Continuously evolving to meet the demands of modern industries.

Quality

Ensuring excellence in every product we create.

Sustainability

Committed to environmentally responsible practices.

Customer Focus

Prioritizing the needs and satisfaction of our clients.

Our Products

We offer a comprehensive range of:

High-performance drill bits, including cobalt, HSS, and masonry bits.
Power tools set & accessories such as saw blades, cutting discs, and polishing pads.
Custom solutions tailored to meet specific industrial requirements.

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