Coated HSS Twist Drill Bits – M2, M35 & M42
Product Specifications
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Geometri yang konsisten pada setiap pesanan berulang.
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Tersedia dalam jumlah kecil dan berbagai ukuran.
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Penandaan khusus, label, dan kemasan.
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Ukuran standar dan konfigurasi khusus.
Coated HSS Twist Drill Bits – M2, M35 & M42 Overview
This coated twist drill range brings together M2, M35 and M42 high-speed steel options for metal drilling. The supplied dimension chart groups cutting diameters from 0.5 to 20 mm into 28 bands, with overall lengths of 36–205 mm and flute lengths of 14–140 mm. Choose the steel grade, coating and point geometry for the workpiece and drilling conditions, then match the selected diameter to its listed length band. The chart does not identify a point angle, coating type or which material grades are available at each diameter; confirm those specifications for the ordered model.
Key Configuration
M2, M35 and M42 are offered as grade options in the product title. Confirm the grade for the requested diameter and workpiece; M2 is not a cobalt grade.
Each of the 28 diameter bands has a corresponding overall length L and flute length L1. Select by exact diameter and required reach.
Confirm the coating or surface treatment for each ordered variant. The dimension chart does not name or assign a coating.
Key Product Advantages
Three HSS Grades
Review M2, M35 or M42 against the specific workpiece and tool configuration.
Diameter Coverage
The supplied reference covers diameter bands from 0.5 to 20 mm.
Length Reference
Check L and L1 for holder clearance and chip evacuation.
Coated Options
Choose the actual coating with the material and process requirements in view.
Drilling Applications
These twist drills are intended for metal holemaking. Select the grade, point geometry and coating according to the workpiece, required hole size and depth, machine rigidity and available coolant. For stainless or other difficult materials, obtain a tool-specific recommendation rather than assuming every grade and coating has the same suitability.
Workpiece Material Selection
Provide the workpiece grade and hardness when selecting an HSS substrate and coating. Steel, stainless steel and other metal groups require different cutting conditions; the supplied dimension chart does not establish a material rating for every M2, M35 or M42 configuration.
Product Details & Available Configurations
The views below are retained from the original product page. Use the size chart to select the diameter and dimensions, then confirm grade, coating, point angle, shank type and availability for that exact model.
*The title names M2, M35 and M42 as product options; the supplied chart does not map steel grade or coating to individual diameter bands.
The video illustrates machining; it does not specify cutting conditions or establish a tool-life or accuracy guarantee for all sizes and workpieces.
Size Chart & Specifications
The supplied chart lists 28 cutting-diameter bands between 0.5 and 20 mm. For each band, it gives overall length L and flute length L1. All values below are in millimeters. Check the exact requested diameter within its band; the chart does not list individual stock sizes, HSS grade, coating or point geometry.
| Diameter D (mm) | Overall L (mm) | Flute L1 (mm) | Diameter D (mm) | Overall L (mm) | Flute L1 (mm) |
|---|---|---|---|---|---|
| 0.5–1.2 | 36 | 14 | 6.1–6.7 | 101 | 63 |
| 1.35–1.5 | 40 | 18 | 6.8–7.5 | 109 | 69 |
| 1.55–1.7 | 43 | 20 | 7.6–8.5 | 117 | 75 |
| 1.75–1.9 | 46 | 22 | 8.6–9.5 | 125 | 81 |
| 1.95–2.1 | 49 | 24 | 9.6–10.6 | 133 | 87 |
| 2.15–2.35 | 53 | 27 | 10.7–11.8 | 142 | 94 |
| 2.4–2.65 | 57 | 30 | 11.9–13.2 | 151 | 101 |
| 2.7–3.0 | 61 | 33 | 13.3–14.0 | 160 | 108 |
| 3.1–3.3 | 65 | 36 | 14.5–15.0 | 169 | 114 |
| 3.4–3.7 | 70 | 39 | 15.5–16.0 | 178 | 120 |
| 3.8–4.2 | 75 | 43 | 16.5–17.0 | 184 | 125 |
| 4.3–4.7 | 80 | 47 | 17.5–18.0 | 191 | 130 |
| 4.8–5.3 | 86 | 52 | 18.5–19.0 | 198 | 135 |
| 5.4–6.0 | 93 | 57 | 19.5–20.0 | 205 | 140 |
Grade and coating confirmation: The original page identifies M2, M35 and M42 as options, but the dimension chart does not assign grade or coating type to any row. The specific configuration should be confirmed in the quotation or product drawing.
HSS Drill Speeds & Feed Settings
Select starting cutting data for the confirmed tool grade, coating, point geometry, workpiece grade and coolant supply. The dimension chart does not provide speed or feed recommendations.
Setting Speed & Feed
Spindle speed: n = (1000 × Vc) / (π × D), where n is RPM, Vc is cutting speed in m/min and D is drill diameter in mm.
Feed rate: F = n × f, where F is feed in mm/min and f is feed per revolution in mm/rev.
Calculation example: At 500 RPM and 0.10 mm/rev, programmed feed is 50 mm/min. This illustrates the formula only; these values are not a recommendation for a specific material.
For additional reference, see our HSS cutting tools speeds & feeds guide. Confirm tool-specific values for the chosen HSS drill and workpiece.
HSS Drill Customization & OEM
HSS drills can be reviewed against your hole requirements, workpiece material and machine setup. We can discuss application-specific dimensions, cutting geometry, tool material, surface finish and private-label presentation. Available options depend on the drill type and the confirmed manufacturing specification.
Point & Cutting Geometry
Review point angle, point thinning, flute design and cutting-edge geometry according to the workpiece and drilling operation. Geometry options vary between twist drills, center drills and special drills.
Dimensions & Shank
Specify cutting diameter, flute length, overall length and the required shank configuration. Straight-shank, Morse-taper, extra-long and other constructions are reviewed by product series.
Finish & OEM Branding
Review a suitable coating or surface finish where applicable. Laser marking, labels and packaging can be discussed for distributor and private-label orders.
Opsi Kustomisasi
| Parameter | Information to Confirm |
|---|---|
| Drill Type | Twist drill, center drill, extra-long drill or application-specific design |
| Bahan Alat | Required HSS grade, such as M2, M35 or M42, subject to the selected series |
| Diameter | Cutting diameter and required diameter tolerance |
| Length & Reach | Flute length, overall length, drilling depth and clearance requirements |
| Point & Flutes | Point geometry, flute design and chip-evacuation requirements |
| Shank | Shank type and dimensions required by the holder |
| Permukaan akhir | Uncoated, coated or treated finish, where suitable for the tool and application |
| OEM Presentation | Tool marking, product labels and packaging requirements |
Options are reviewed for the specific product and order. A listed option does not imply that every HSS drill series has the same material, geometry, shank or coating choices.
What to Send for a Custom Drill Quote
Send the drill type, diameter, hole depth, workpiece grade, required geometry, shank or holder details, quantity and any coating or marking requirements. A drawing or reference sample helps confirm non-standard dimensions.
Submit a Custom Tool RequestHSS Drill Quality Control
HSS drills are reviewed against the confirmed product specification or approved drawing. Checks are selected according to drill type, size, geometry and finish, from incoming material through grinding, final inspection and packing.
Material Verification
Check the specified HSS grade and incoming material information against the production order.
In-Process Checks
Review key dimensions and ground features during production so deviations can be addressed before final inspection.
Final Tool Inspection
Check the applicable diameter, lengths, point geometry, cutting edges and shank against the approved specification.
Marking & Packing
Verify the model identification, order quantity and agreed packaging before dispatch.
Inspection Checkpoints
| Fitur | Check Against the Confirmed Specification |
|---|---|
| Diameter Pemotongan | Nominal size and specified diameter tolerance |
| Flute & Overall Length | Required cutting length, tool reach and overall dimension |
| Point Geometry | Point angle, symmetry and specified point features |
| Cutting Edges & Flutes | Visible edge condition and the relevant ground flute features |
| Shank & Finish | Specified shank dimensions and applicable coating or surface finish |
| Order Identification | Model, size, quantity, marking and agreed packaging |
Learn more about our manufacturing and quality process.
FAQ & Technical Support
Grade selection, drill dimensions, cutting conditions and ordering guidance for coated M2, M35 and M42 HSS twist drills.
Product & Application FAQs
What is the difference between M2, M35 and M42 HSS?
M2 is a general-purpose high-speed steel. M35 and M42 are cobalt-alloyed HSS grades that can be considered when greater hot hardness is required. The best choice also depends on drill geometry, coating, workpiece grade, machine setup and cutting conditions. Confirm which grades are available for your requested diameter.
Which drill diameters and lengths are listed?
The size chart groups diameters from 0.5 to 20 mm into 28 bands. Corresponding overall lengths range from 36 to 205 mm, and flute lengths from 14 to 140 mm. Select the exact diameter first, then check its L and L1 values in the chart. A diameter band does not establish that every intermediate size is stocked.
What do L and L1 mean in the size chart?
L is the drill's overall length and L1 is its flute length. Use both values to check tool reach and holder clearance. L1 is a physical tool dimension; it is not a guaranteed usable drilling depth because the point, chip space and drilling method also matter.
Which coating and point angle does this series use?
The supplied dimension chart does not identify the coating type or point angle, and it does not map those configurations to individual sizes. Specify the workpiece and drilling conditions so the coating and point geometry can be confirmed for the selected model.
Can these drills be used for stainless steel?
An application-matched HSS grade, geometry and coating may be selected for stainless-steel drilling. Provide the stainless-steel grade, hole diameter and depth, machine setup and coolant information for review. The dimension chart alone does not establish that every M2, M35 or M42 variant suits every stainless-steel grade.
How should I select speed and feed?
Select a starting cutting speed and feed per revolution for the confirmed drill grade, coating, diameter, workpiece and coolant conditions. Spindle speed can be calculated from cutting speed and diameter; feed in mm/min equals RPM multiplied by feed per revolution. Validate the starting settings with a trial hole.
Are these drills suitable for deep holes?
Check the required depth against the specific drill geometry and flute length. A long L1 dimension does not by itself establish a deep-hole rating. Chip evacuation, coolant delivery, machine stability and the drilling cycle must also be reviewed; a dedicated long or deep-hole drill may be required.
Ordering & Customization FAQs
What information is needed for a quotation?
Provide the exact diameter, quantity, preferred M2, M35 or M42 grade, workpiece material and hardness, hole depth, machine or holder details, and any coating or point-geometry requirements. Include a drawing for non-standard dimensions or tolerances.
Can the dimensions, finish and OEM presentation be customized?
Requests for non-standard diameter, length, point geometry, suitable surface finish, laser marking and packaging can be reviewed. Available options, tolerances and inspection criteria are confirmed for the requested design before production.
Are samples and mixed-size orders available?
Sample and mixed-size requests can be reviewed. Minimum quantity, stock availability and dispatch timing depend on the selected diameter, HSS grade, coating and any customization. Send a size-and-quantity list for confirmation.
Selection Guides
How to Choose HSS Cutting Tools
How to Choose a Solid Carbide Drill
The carbide drill guide provides an alternative tool-material comparison; its cutting data does not apply directly to HSS drills.
Catalog & Technical Downloads
HSS Cutting Tools Speeds & Feeds Guide (PDF)
General HSS cutting-data reference. Confirm starting values for the selected drill grade, coating, diameter and workpiece.
The complete D, L and L1 dimension table is available in this product page’s Specifications & Sizes tab.
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