M2 HSS Morse Taper Shank Drill Bits

M2 HSS Morse taper shank drill bits for machine drilling in general steels, cast iron and selected non-ferrous metals. The size chart lists 134 diameters from Ø5 to Ø76 mm, with diameter-specific flute lengths, overall lengths and MT1–MT5 taper sizes.

Product Specifications

Drill TypeMorse Taper Shank Twist Drill
Material da ferramentaM2 HSS
Faixa de diâmetroØ5–Ø76 mm
Listed Sizes134 Diameters
Flute Length (L1)52–260 mm
Comprimento total (L)133–447 mm
Tipo de hasteMorse Taper
Taper SizesMT1 / MT2 / MT3 / MT4 / MT5

MOQ: 10pcs
Dispatch: Confirm Current Availability
Personalização: Dimensions / Point Geometry / Finish / OEM Marking
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Consistent Quality

Consistent geometry across repeat orders.

Pedidos flexíveis

Small batches and mixed sizes available.

OEM Support

Custom marking, labels and packaging.

Padrão e personalizado

Standard sizes and custom configurations.

Visão geral do produto

O M2 HSS Morse Taper Shank Drill Bits are built for stable, high-torque holemaking on radial drilling machines, pillar drills, lathes, and other machine tools equipped with a compatible Morse-taper socket or sleeve. The self-holding taper fits directly into a matching spindle or adapter, avoiding the capacity and slippage limitations of a conventional drill chuck when larger drill diameters are required.

Fabricado a partir de M2 high-speed steel, the drills balance cutting-edge wear resistance with the toughness needed for general industrial drilling. They are suited primarily to carbon steel, structural steel, low-alloy steel, cast iron, and selected non-ferrous metals under appropriate cutting conditions. The cutting edges can be resharpened, making this series a practical choice for maintenance, fabrication, machinery production, and larger-diameter metal drilling.

M2 HSS
Balanced toughness and wear resistance
Morse Taper Shank
Direct, self-holding machine connection
Type N Flutes
General-purpose chip formation and evacuation
Resharpenable
Suitable for repeated industrial service

M2 HSS Morse taper shank twist drill machining a large metal component

Industrial drilling setup using a taper-shank twist drill. Machine rigidity, correct taper engagement, coolant supply, chip evacuation, and stable workholding are essential for large-diameter drilling.

Why Use a Morse Taper Shank?

Direct Machine ConnectionThe shank seats directly in a matching Morse-taper spindle, tailstock, socket, or reducing sleeve without a conventional drill chuck.
Self-Holding Taper ContactFull, clean taper contact supports concentric location and stable torque transfer during drilling.
Suitable for Larger Drill SizesThe taper-shank format is commonly selected where drill diameter and torque demand exceed the practical capacity of a standard chuck.
Match the MT SizeThe drill’s Morse-taper number must match the machine socket or an approved reducing sleeve. Never force an incorrect taper into the spindle.

Morse Taper vs. Straight Shank

Selection Point Morse Taper Shank Straight Shank
Machine interface Directly seats in a matching taper socket or sleeve Held by a drill chuck, collet, or other holder
Typical use Higher-torque and larger-diameter industrial drilling Flexible tool changes and smaller general drilling
Required check Correct MT number, clean taper, and full seating Holder capacity, grip length, and runout
Removal Use the machine’s approved drift or ejection mechanism Release the chuck or holder according to its instructions

Why M2 High-Speed Steel?

Toughness Under LoadM2 HSS tolerates the interrupted forces and moderate setup variation encountered in general industrial drilling better than a more brittle cutting material.
Practical Wear ResistanceThe material retains a useful cutting edge at the lower cutting speeds normally used for HSS metal drilling.
Resharpening ValueA worn point can be reground when enough flute length remains, helping reduce replacement cost in maintenance and production environments.
General Metal CoverageSuitable for common steels, cast iron, and selected copper alloys when point geometry, lubrication, and cutting data are correctly matched.

Point Geometry & Cutting Thrust

118 degree and 135 degree point options for M2 HSS Morse taper drill
Split point geometry for reduced starting thrust and improved drill centering
118° General-Purpose PointA conventional option for many general steels and common workshop drilling applications.
135° Point OptionA flatter point may be considered for tougher materials or more rigid production conditions. Confirm the exact point form before ordering.
Split-Point OptionA thinned or split chisel edge can reduce starting thrust and drill walking on a flat, stable surface.

Type N Flute Geometry

Type N approximately 30 degree helix on M2 HSS Morse taper twist drill

The illustrated Type N regular spiral uses an approximately 30° helix for general metal drilling. The two flutes balance edge support with chip space, but coolant flow and retract strategy must still be matched to the material, diameter, and hole depth.

Manufacturing & Finish Options

HSS Morse taper drill manufacturing and finish options including black, bright, milled, and cobalt variants
Selection note: The image shows several HSS manufacturing, finish, and cobalt-grade variants across the wider product family. This product title specifies M2 HSS; black oxide, bright, milled, coated, or other finishes must be confirmed separately. A cobalt HSS drill is a different material option and should not be described as M2.

Long & Extra-Long Series

GB T 1438.3 long series and DIN 1870 extra-long Morse taper shank drill options
GB/T 1438.3 Long SeriesA long-series Morse-taper option is available for applications requiring added reach. Confirm diameter, MT size, flute length, and overall length against the current specification.
DIN 1870 Extra-Long SeriesAn extra-long series can provide greater reach, but requires increased attention to alignment, deflection, chip evacuation, and reduced cutting load.

Recommended Application Range

PRIMARY APPLICATIONS

General Steel & Structural MetalCarbon steel, structural steel, low-alloy steel, machinery components, plates, blocks, and fabricated metal parts.

ALSO SUITABLE WHEN MATCHED

Cast Iron & Copper AlloysConfirm the exact grade, point geometry, flute finish, lubrication method, and chip control before production.

CONSIDER ANOTHER GRADE

Stainless & Heat-Resistant AlloysM35 or M42 cobalt HSS may be more appropriate where higher hot hardness and wear resistance are needed.

Position Within the HSS Drill Family

Comparison of rolled, ground, coated, taper-shank, center, and spot HSS drill types

The taper-shank drill is one member of the wider HSS holemaking family. Select by machine connection and hole requirement first, then confirm HSS grade, manufacturing method, surface finish, point form, and length series.

Setup & Machining Recommendations

Clean Both Taper SurfacesRemove chips, oil, burrs, and corrosion from the drill shank and machine socket before installation.
Seat the Taper FullyCheck that the drill engages the full taper and does not bottom incorrectly on the tang or sleeve.
Secure the WorkpieceClamp the part rigidly and support large or irregular components. Never rely on hand restraint for heavy drilling.
Use Suitable Cutting FluidApply lubrication or coolant appropriate to the material and operation, while keeping chips moving out of the flutes.
Control Chip EvacuationFor deep or blind holes, use an appropriate retract cycle before chips pack in the flutes or are recut.
Choose HSS Cutting DataSet speed and feed for M2 HSS and adjust for diameter, material, point form, rigidity, depth, and coolant.

Size Chart & Specifications

M2 HSS Morse Taper Shank Drill Bits are listed in 134 diameters from Ø5 to Ø76 mm. Flute lengths (L1) range from 52 to 260 mm, overall lengths (L) from 133 to 447 mm, and the specified shank sizes from MT1 to MT5. All dimensions are in millimeters. Select the required diameter and check its corresponding flute length, overall length and Morse taper against the machine setup.

M2 HSS Morse taper shank drill dimensions showing diameter D, flute length L1, overall length L and MT shank
Diameter D (mm) Flute L1 (mm) Overall L (mm) Morse Taper Diameter D (mm) Flute L1 (mm) Overall L (mm) Morse Taper
5 52 133 MT1 29.5 175 296 MT3
5.2 52 133 MT1 30 175 296 MT3
5.5 57 138 MT1 30.5 180 301 MT3
5.8 57 138 MT1 31 180 301 MT3
6 57 138 MT1 31.5 180 301 MT3
6.2 63 144 MT1 32 185 334 MT4
6.5 63 144 MT1 32.5 185 334 MT4
6.8 69 150 MT1 33 185 334 MT4
7 69 150 MT1 33.5 185 334 MT4
7.2 69 150 MT1 34 190 339 MT4
7.5 69 150 MT1 34.5 190 339 MT4
7.8 75 156 MT1 35 190 339 MT4
8 75 156 MT1 35.5 190 339 MT4
8.2 75 156 MT1 36 195 344 MT4
8.5 75 156 MT1 36.5 195 344 MT4
8.8 81 162 MT1 37 195 344 MT4
9 81 162 MT1 38 200 349 MT4
9.2 81 162 MT1 38.5 200 349 MT4
9.5 81 162 MT1 39 200 349 MT4
9.8 87 168 MT1 39.5 200 349 MT4
10 87 168 MT1 40 200 349 MT4
10.2 87 168 MT1 40.5 205 354 MT4
10.5 87 168 MT1 41 205 354 MT4
10.8 94 175 MT1 41.5 205 354 MT4
11 94 175 MT1 42 205 354 MT4
11.2 94 175 MT1 42.5 205 354 MT4
11.5 94 175 MT1 43 210 359 MT4
11.8 94 175 MT1 43.5 210 359 MT4
12 101 182 MT1 44.5 210 359 MT4
12.2 101 182 MT1 45 210 359 MT4
12.5 101 182 MT1 45.5 215 364 MT4
12.8 101 182 MT1 46 215 364 MT4
13 101 182 MT1 46.5 215 364 MT4
13.2 101 182 MT1 47 215 364 MT4
13.5 108 189 MT1 47.5 215 364 MT4
13.8 108 189 MT1 48 220 369 MT4
14 108 189 MT2 48.5 220 369 MT4
14.5 114 212 MT2 49 220 369 MT4
15 114 212 MT2 49.5 220 369 MT4
15.5 120 218 MT2 50 220 369 MT4
16 120 218 MT2 50.5 220 374 MT4
16.5 125 223 MT2 51 225 412 MT4
17 125 223 MT2 52 225 412 MT5
17.5 130 228 MT2 53 225 412 MT5
18 130 228 MT2 54 230 417 MT5
18.5 135 233 MT2 55 230 417 MT5
19 135 233 MT2 56 230 417 MT5
19.5 140 238 MT2 57 235 422 MT5
20 140 238 MT2 58 235 422 MT5
20.5 145 243 MT2 59 235 422 MT5
21 145 243 MT2 60 235 422 MT5
21.5 150 248 MT2 61 240 427 MT5
22 150 248 MT2 62 240 427 MT5
22.5 155 253 MT2 63 240 427 MT5
23 155 253 MT2 64 245 432 MT5
23.5 155 276 MT3 65 245 432 MT5
24 160 281 MT3 66 245 432 MT5
24.5 160 281 MT3 67 245 432 MT5
25 160 281 MT3 68 250 437 MT5
25.5 165 286 MT3 69 250 437 MT5
26 165 286 MT3 70 250 437 MT5
26.5 165 286 MT3 71 250 437 MT5
27 170 291 MT3 72 255 442 MT5
27.5 170 291 MT3 73 255 442 MT5
28 170 291 MT3 74 255 442 MT5
28.5 175 296 MT3 75 255 442 MT5
29 175 296 MT3 76 260 447 MT5
Technical Note: The supplied table does not list Ø37.5 mm or Ø44 mm. The Ø51 mm entry shows L1 = 225 mm and L = 412 mm, a notable increase from the Ø50.5 mm entry; confirm this dimension before ordering. Flute length is a tool dimension and does not by itself establish the maximum usable drilling depth.

Specification confirmation: M2 HSS is the stated tool material. Confirm the manufacturing standard, diameter tolerance, point form, finish and exact MT socket compatibility for the ordered size. The illustrated 118°, 135° and split-point designs are options; the size table does not assign a specific point form to each diameter.

HSS Drill Speeds & Feed Settings

Select starting cutting data for the confirmed M2 HSS drill geometry, workpiece grade and hardness, drill diameter, hole depth and coolant supply. The dimension table does not specify cutting speeds or feed rates.

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 300 RPM and 0.15 mm/rev, the programmed feed is 45 mm/min. This demonstrates the calculation only and is not a cutting recommendation for every diameter or material.

Application Note: Check that the Morse taper and machine socket are clean and fully engaged. Secure the workpiece, confirm machine rigidity, provide suitable coolant and prevent chips from packing in the flutes. For larger diameters, assess whether a pilot hole is appropriate for the drill geometry and setup. Validate cutting parameters with a trial hole.

For additional reference, see our HSS cutting tools speeds & feeds guide. Confirm tool-specific values for the selected 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.

01

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.

02

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.

03

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.

Opções de personalização

Parâmetro Information to Confirm
Drill Type Twist drill, center drill, extra-long drill or application-specific design
Material da ferramenta 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
Haste Shank type and dimensions required by the holder
Acabamento da superfície 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.hy cutting tools hss drills product series

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 Request

HSS Drill Quality Control

Inspection & Quality Control hy cutting tools

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.

01 · MATERIAL

Material Verification

Check the specified HSS grade and incoming material information against the production order.

02 · GRINDING

In-Process Checks

Review key dimensions and ground features during production so deviations can be addressed before final inspection.

03 · INSPECTION

Final Tool Inspection

Check the applicable diameter, lengths, point geometry, cutting edges and shank against the approved specification.

04 · DELIVERY

Marking & Packing

Verify the model identification, order quantity and agreed packaging before dispatch.

Inspection Checkpoints

Recurso Check Against the Confirmed Specification
Cutting Diameter 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
Inspection Scope: The applicable checkpoints and acceptance limits follow the confirmed product series, purchase specification or approved drawing. Center drills, extra-long drills and Morse-taper drills have different features to inspect.

hss drill package boxes hy cutting toolsLearn more about our manufacturing and quality process.

Product FAQs

What sizes are listed for these M2 HSS Morse taper drills?

The specification table lists 134 diameters from Ø5 to Ø76 mm. Flute lengths (L1) range from 52 to 260 mm, overall lengths (L) from 133 to 447 mm, and Morse taper sizes from MT1 to MT5. Check the exact combination for your selected diameter in the size chart.

How do I choose the correct Morse taper size?

Select the required drill diameter first, then check its assigned MT number in the specification table. The taper must fit the machine spindle, tailstock or a suitable reducing sleeve. Confirm that both taper surfaces are clean and that the drill seats correctly before machining.

Which materials can these M2 HSS drills machine?

M2 HSS is a general-purpose choice for carbon steel, structural steel, low-alloy steel, cast iron and selected non-ferrous metals when the drill geometry and cutting conditions are matched to the workpiece. For stainless steel or heat-resistant alloys, provide the material grade and hardness so the appropriate HSS grade and point geometry can be reviewed.

Are 118°, 135° and split-point drills all standard specifications?

The product images illustrate these point-geometry options, but the dimension table does not assign a point form to each diameter. Confirm the available point angle and whether a split point is required for the exact size before ordering.

Does flute length equal the maximum drilling depth?

No. L1 is the physical flute length. Usable drilling depth also depends on the drill point, chip clearance, coolant delivery, workholding and whether the hole is blind or through. Provide the required hole depth when selecting the drill.

How should I set speed and feed for larger diameters?

Select cutting speed and feed per revolution for the confirmed M2 HSS drill geometry, workpiece material, diameter and coolant setup. Larger diameters generally require a lower spindle speed at the same cutting speed. Check machine rigidity and chip evacuation; assess whether a pilot hole is appropriate, then validate the setup with a trial hole.

Ordering & OEM FAQs

What information should I send for a quotation?

Send the required diameter and quantity per size, machine socket or MT number, workpiece material, hole depth and hole type. Include any requirements for point angle, split point, surface finish, diameter tolerance, marking or packaging.

Can I request non-standard dimensions or OEM branding?

Custom diameter, flute length, overall length, point geometry, surface finish and OEM marking requests can be reviewed. Send a drawing or specification sheet; feasibility, tolerance, minimum quantity and lead time will be confirmed for the requested configuration.

Can I order several diameters together?

Yes. Send a diameter-by-diameter quantity list for a mixed-size quotation. Stock availability, MOQ and dispatch timing will be confirmed for each selected size. If you require Ø37.5 mm or Ø44 mm, request confirmation because those diameters are not listed in the supplied table.

Downloads & Technical Reference

For general HSS drilling calculations and starting references, see the HSS cutting tools speeds & feeds guide. Confirm tool-specific cutting data for the ordered diameter, point geometry and workpiece.

Need Sizes, Pricing or Custom Options?

Send us the required tool type, sizes, quantities, workpiece material and any OEM or custom requirements. We will confirm suitable specifications, availability, lead time and quotation details.

Standard Sizes Small Trial Orders Mixed Sizes OEM & Custom Options
Request Price & Specifications Chat on WhatsApp

Drawings, size lists and reference photos are welcome.

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