Alloy ladder drill bit

Alloy ladder drill bit：

Solid carbide step Fried Dough Twists drill:
Product features: Suitable for steel, cast iron, and silicon aluminum gold threaded bottom holes and chamfers
Application areas: ordinary steel, quenched and tempered steel, stainless steel, cast iron, aluminum alloy, etc
Material: Titanium and ultrafine particle hard alloy

Features of using a 90 degree step drill for threaded bottom holes:
Material: Solid hard alloy, non coated; Drilling depth: 2-3 times the diameter, cooling method: external cooling; Handle type: D2 straight handle; Scope of application: Suitable for drilling holes in cast iron and aluminum alloys.
The related solid hard alloy drill bit can process a variety of drill bits including gray cast iron, medium hardness cast iron, gray cast iron, malleable cast iron, ductile iron, aluminum alloy, etc.
Non-standard customization
The semi standard solution has a medium diameter.
There is a designed solution.
Multiple step drill bits can be provided upon request.
Provide left-hand cutting tool products.

Characteristics of tungsten steel step drill:
Scope of application: Used for processing aluminum alloys, carbon structural steel, alloy structural steel, stainless steel, gray cast iron, ductile iron, copper alloys, etc.
Features: Integrated drilling and chamfering, large chip removal space.
Welcome to customize non-standard tungsten steel cutting tools.

Step drill: Tungsten steel drill bits (hard alloy) have a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, etc. Especially, their high hardness and wear resistance remain basically unchanged even at a temperature of 500 ℃, and still have high hardness at 1000 ℃. Tungsten steel drill bits are generally used as rock drilling tools, mining tools, drilling tools, measuring tools, etc. Our company produces customized tungsten steel drill bits, hard alloy drill bits, tungsten steel step drills, tapered drill bits, and non-standard tungsten steel drill bits.
Scope of application: Suitable for hole machining of materials such as cast iron and aluminum alloy drills.

Tungsten steel step drill: ultra-fine particle hardAlloy ladder drill bitMainly used for step hole processing, drilling can be completed in one go to improve processing efficiency.
We can customize various specifications according to customer requirements, such as double step drill bits, multiple step drill bits, tapered step drill bits, straight groove drill bits, step drill milling cutters, step drill reamers, step flat drills, etc.

Step drill: It has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, etc., especially its high hardness and wear resistance.
Tungsten steel step drill can quickly achieve one-time drilling and chamfering, especially suitable for drilling and chamfering threaded bottom holes.
Using ultra-fine tungsten steel, combining toughness and hardness for cutting tools. Mainly used for processing inner holes of materials such as copper, aluminum, and scrap metal.
Our company can customize various tungsten steel (hard alloy) drills, including step drills, Fried Dough Twists drills, center drills, and various non-standard shaped drills; It can effectively deal with stainless steel, process aluminum products with good surface smoothness, and can also process other types of steel. Welcome to customize and process according to your drawings.

Ladder drill: used for processing most materials such as quenched and tempered steel, stainless steel, low-carbon steel, alloy steel, gray cast iron, ductile iron, aluminum alloy, copper alloy, titanium alloy, nickel based alloy, magnesium alloy, etc. Strong self centering ability, able to achieve stable dimensional accuracy and good surface quality. The tool diameter, groove length, and total length can be customized non-standard

Step Fried Dough Twists drill: Fried Dough Twists drill is a widely used hole processing tool. The usual diameter range is 0.25-80 millimeters. It mainly consists of a working part and a handle. The working part has two spiral grooves in the shape of Fried Dough Twists.
The friction between the guide part and the hole wall during drilling is reduced, and the diameter of the Fried Dough Twists drill gradually decreases from the drill tip to the shank, showing an inverted cone shape. The spiral angle of the Fried Dough Twists drill mainly affects the size of the rake angle on the cutting edge, the strength of the blade and the chip removal performance, usually 25 °~32 °. Spiral grooves can be machined using methods such as milling, grinding, hot rolling, or hot extrusion. The front end of the drill bit is ground to form the cutting part. The top angle of the cutting part of the standard Fried Dough Twists drill is 118, the oblique angle of the transverse edge is 40 °～ 60 °, and the rear angle is 8 °～ 20 °. Due to structural reasons, the rake angle is larger at the outer edge and gradually decreases towards the middle, while the cross edge has a negative rake angle (up to -55 °), which exerts a squeezing effect during drilling. In order to improve the cutting performance of Fried Dough Twists drills, the cutting part can be grinded into various shapes (such as group drills) according to the properties of the processed materials. The Fried Dough Twists drill has two types of shank: straight shank and taper shank. During processing, the former is clamped in the drill chuck, and the latter is inserted in the taper hole of the machine tool spindle or tailstock. Generally, Fried Dough Twists drills are made of high-speed steel. The Fried Dough Twists drill with cemented carbide inserts or crowns is suitable for processing cast iron, hardened steel and non-metallic materials, while the overall cemented carbide small Fried Dough Twists drill is used for processing instrument parts and printed circuit boards, etc.

Straight groove step drill: The overall step drill is made of CBN full grinding material, mainly made of high-speed steel, hard alloy, etc., with high machining accuracy requirements. Surface coating treatment can be carried out according to different machining conditions to extend the service life of the tool and enhance its durability.
Product scope and industry:
The product can be used in industries such as automotive processing, aerospace, sheet metal processing, electrical installation and maintenance. At the same time, the product is easy to carry and can be used in conjunction with tools such as handheld drills for high-altitude operations.
Product classification:
According to the groove shape of the product, it can be divided into three types: straight groove, spiral groove, and circular groove;
According to the number of blades in the product, it can be divided into single blade, two blade, three blade, four blade, and multi blade step drills;
Imported carbide internal cooling Fried Dough Twists bit:
Length variation and step drilling.
Better blade diameter ratio and very complex step drill
Not recommended for processing austenitic stainless steel.
If machining the contour of the workpiece, it is recommended to bypass it
Solid hard alloy drill bits are designed for stainless steel applications, providing high performance and longer tool life in ordinary steel and titanium materials, combined with coatings to improve drill bit service life.

Ladder drill bit: used for processing most materials such as quenched and tempered steel, stainless steel, low-carbon steel, alloy steel, gray cast iron, ductile iron, aluminum alloy, copper alloy, titanium alloy, nickel based alloy, magnesium alloy, etc. Strong self centering ability, able to achieve stable dimensional accuracy and good surface quality

Whole hard alloy step drilling and milling reamer
Features: For a workpiece with multiple stepped holes, the tool can ensure the positional accuracy, straightness, accuracy, and smoothness of the holes, while saving processes. The stepped reaming and milling tool greatly reduces processing time and tool changing time. After the wear of the reaming and milling cutter, it can be appropriately ground; Applicable industries: construction machinery, automotive parts.

Spiral step drill: Multiple steps can be made according to the processing situation of the product, with straight groove external or internal cooling drill bits. Spiral bottom hole drill is commonly used, which has a very high processing efficiency for step holes. It can be repeatedly polished and has a very high cost-effectiveness. Suitable for automotive parts, construction machinery, pump and valve components, and aircraft manufacturing industry.
Typical products being processed: automotive brake drums, hydraulic valves, steering knuckles, reducer cycloidal wheels, etc.