Professional Drill Bits for Every Application

As a direct drill bit manufacturer in Hangzhou, China, Wryno Global produces HSS twist drill bits, cobalt drill bits, tungsten carbide drill bits, SDS hammer drill bits, and step drill bits for industrial applications worldwide. Factory direct pricing, custom sizes and OEM packaging available.

● HSS / Cobalt / Carbide ● SDS Plus & SDS Max ● OEM Packaging Available ● Factory Direct Supply

Product Selection Guide

Find the Right Drill Bit by Workpiece, Hole Size and Machine

Select the drilling scenario first, then match the product family, shank type, material grade and related guide. This makes the Drill Bits page work more like a buyer decision tool, not only a category list.

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Workpiece / Material Hole Size Machine

Recommended

HSS Twist Drill Bits

Good first choice for mild steel, aluminum, wood and plastic. Confirm diameter, shank, length and coating before quoting.

View product Read guide

Drill Bit Selection Matrix

Use this long table when customers send only a material name or a rough application. It connects product type, shank, material grade, coating and common SEO guide pages.

Color block	Use scenario	Recommended product	Shank / machine	Material / coating logic	Buyer focus	Related guide
Metal	Mild steel / carbon steel General workshop holes, brackets, frames	HSS twist drill bit	Round shank, drill press or handheld	M2 HSS, black oxide or TiN optional	Low cost, broad size range, stable quality	HSS for mild steel
Metal	Stainless steel 304/316 sheet, tube, plate	Cobalt drill bit or carbide drill bit	Round shank, drill press preferred	M35/M42 cobalt for heat resistance; carbide for rigid production	Low RPM, firm feed, cutting fluid, avoid work hardening	Stainless guide
Metal	Cast iron / abrasive metal High wear production drilling	Carbide drill bit	CNC or rigid drill press	Solid carbide or carbide-tipped, coating by application	Tool life, runout, rigidity, chip evacuation	Carbide vs HSS
Aluminum	Aluminum plate / extrusion Window profile, machine plate, non-ferrous parts	Sharp HSS twist drill bit	Round or hex shank, handheld or drill press	Sharp edge, polished flute useful; coating not always necessary	Prevent chip welding, burrs and grabbing	Aluminum guide
Sheet	Thin sheet metal / electrical panels Control box, cabinet, HVAC panel	Step drill bit	Hex shank, cordless drill	HSS step drill, TiN coating optional	Clean round holes, multiple diameters, less grabbing	Drill bit types
Masonry	Concrete / brick / stone Anchor holes, construction drilling	SDS hammer drill bit	SDS Plus or SDS Max rotary hammer	Carbide tip, brazing quality, flute design	Impact transfer, tip durability, dust evacuation	SDS concrete guide
Masonry	Large concrete holes Pipe, conduit, installation holes	Core drill bit / hole saw system	Rotary hammer or core drill machine	Segment quality, cooling method, depth requirement	Diameter, working length, machine compatibility	SDS comparison
General	Wood / plastic / repair kits DIY, hardware retail, mixed use	HSS twist drill bit set	Round or hex shank	Economy HSS or general-purpose set	Packaging, size range, retail presentation	Size chart guide
Precision	Tap holes / clearance holes Threading, assembly, screw passing holes	Metric HSS twist drill set	Drill press preferred for accurate holes	Exact diameter control, DIN/ANSI size system	Tap drill chart, tolerance, size marking	Tap vs clearance
Precision	Production drilling Repeat holes, industrial batches	Carbide or cobalt drill bit	CNC / rigid drill press	Solid carbide, cobalt, TiAlN or application coating	Cost per hole, runout, tool life, batch consistency	Drill speed chart

What to Confirm Before Ordering Drill Bits

Workpiece: mild steel, stainless steel, aluminum, concrete, wood or plastic.
Diameter range, total length, working length and shank type.
Material grade: HSS, M35 cobalt, M42 cobalt, carbide-tipped or solid carbide.
Coating: black oxide, TiN, TiAlN or polished flute for non-ferrous drilling.
Packaging: bulk pack, plastic box, blister card, private label or neutral packing.

Related Drill Bit Guides

Drill Bit Types Explained Drill Bit Shank Types Why Drill Bits Break or Burn Drill Speed Chart Drill Bit Materials Explained

Explore Our Drill Bit Categories

Five specialized drill bit categories designed for every drilling application — from general-purpose HSS to professional-grade carbide and SDS hammer bits.

HSS Twist Drill Bits

High-speed steel drill bits for metal, wood, and plastic drilling applications.

Carbide Drill Bits

Tungsten carbide drill bits for hardened steel, cast iron, and stainless steel.

SDS Hammer Drill Bits

SDS Plus and SDS Max bits for concrete, masonry, and stone drilling.

Step Drill Bits

Multi-diameter step drill bits for sheet metal, thin plate, and panels.

Core Drill Bits

Core drill bits for deep hole and large-diameter drilling applications.

Why Source Drill Bits from Wryno Global

Factory Direct

No middleman markup. Direct pricing from our Hangzhou manufacturing facility with competitive FOB and CIF terms.

Custom OEM

Private label, custom sizes, and special specifications. Your brand, our quality. Full OEM services from packaging to labeling.

Full Range

HSS, carbide, SDS, step, and core drill bits. One supplier for all your drilling needs reduces sourcing complexity.

Quality Certified

ISO-compliant manufacturing with batch traceability and consistent quality standards across every production run.

Need a Reliable Drill Bit Quotation?

Send your drill bit size, workpiece material, shank type, quantity and packaging requirement. We will recommend the right HSS, cobalt, carbide, SDS or step drill bit option and reply with factory pricing.

Complete Drill Bit Product System

Drill Bit Selection Matrix by Material, Type, Shank, Grade and Packaging

Use this matrix like the saw blade selection table: start from the workpiece, then narrow down by drill bit type, machine shank, base material, coating, size standard and packaging requirement.

5 selection dimensionsWorkpiece, type, shank, material grade and size/packaging.

26 buying scenariosFrom HSS retail sets to SDS concrete bits and carbide CNC drilling.

Direct internal linksEvery scenario connects to a product or technical guide page.

Tip: this is a long selection table. On mobile or small screens, swipe left/right to compare all columns.

WORKPIECE / MATERIAL
Color block	Selection dimension	Use scenario	Recommended product	Shank / machine	Material / coating	Size / standard logic	Quotation focus	Related page
Material	Mild steel / carbon steel	General workshop holes, brackets, frames	HSS twist drill bit	Round shank; handheld or drill press	HSS 4341 for economy, M2/6542 for better life; black oxide or TiN optional	DIN 338 jobber length; metric 1–13mm common	Low cost, full size range, stable repeat orders	HSS Twist Drill Bits
Material	Stainless steel 304 / 316	Sheet, tube, fabrication, repair and production drilling	M35 cobalt drill bit; M42 for premium line	Drill press preferred; handheld possible with control	M35/M42 cobalt; TiAlN optional for production	Lower RPM; split point useful; common 2–13mm sets	Heat resistance, avoid work hardening, cost per hole	M35 vs M42
Material	Aluminum sheet / plate / extrusion	Window profile, aluminum panel, machine plate	Sharp HSS twist bit or step drill for sheet	Round/hex shank; cordless or drill press	Sharp HSS, polished flute helpful; coating not always needed	Use lubrication; step drill for thin panels	Prevent chip welding, burrs and grabbing	Aluminum guide
Material	Concrete / brick / masonry	Anchor holes, installation holes, construction work	SDS hammer drill bit	SDS Plus or SDS Max rotary hammer	Carbide tip, brazing strength, flute design	Choose diameter + working length + total length	Impact transfer, tip durability, dust evacuation	SDS Hammer Drill Bits
Material	Wood / plastic / DIY mixed use	General repair kits, retail sets, home use	General HSS twist drill set	Round or hex shank	Economy HSS, bright finish or black oxide	Metric/imperial combination sets	Packaging, visible size marking, retail price point	Size chart guide
DRILL BIT TYPE
Color block	Selection dimension	Use scenario	Recommended product	Shank / machine	Material / coating	Size / standard logic	Quotation focus	Related page
Type	Twist drill bits	General through holes and pilot holes	HSS / cobalt / carbide twist drill	Round, hex, reduced shank, Morse taper	Choose material grade by workpiece hardness	118° for general use; 135° split point for metal centering	Most universal product family	Types explained
Type	Step drill bits	Thin sheet metal, electrical panels, HVAC boxes	HSS step drill bit	Hex shank cordless drill	HSS with TiN/TiAlN coating optional	Step range such as 4–12, 4–20, 4–32mm	Clean multi-size holes, less grabbing	Step drill guide
Type	SDS hammer drill bits	Concrete, masonry, brick, stone	SDS Plus / SDS Max hammer bit	Rotary hammer only	Carbide tipped alloy steel body	Diameter + working length + total length	Construction users, rental and contractor market	SDS comparison
Type	Carbide drill bits	Cast iron, hardened steel, abrasive production work	Solid carbide or carbide-tipped drill	CNC or rigid drill press	Ultra-fine grain carbide; coating optional	Runout and geometry matter more than package size	Tool life, precision, cost per hole	Carbide Drill Bits
Type	Hole saw / core drill direction	Large diameter holes in sheet, wood, concrete or panels	Hole saw / core drill bit	Arbor system or core drill machine	Bi-metal, carbide tipped or diamond depending on workpiece	Choose OD, depth and arbor compatibility	Large holes without removing full material volume	Types explained
SHANK / MACHINE
Color block	Selection dimension	Use scenario	Recommended product	Shank / machine	Material / coating	Size / standard logic	Quotation focus	Related page
Shank	Round shank	Standard HSS/cobalt twist drill applications	HSS or cobalt twist drill	Keyed/keyless drill chuck	General HSS, M2, 4341, cobalt	Broadest compatibility with drill press and hand drill	Low cost, standard stock, easy sourcing	Shank types
Shank	Hex shank	Cordless drill, quick-change work, step drill kits	Hex shank HSS or step drill	Quick-change holder, cordless driver	HSS, TiN coated step drill common	Good for retail and jobsite kits	Reduced slipping, fast bit change	Shank types
Shank	SDS Plus	Common concrete anchor holes	SDS Plus hammer bit	SDS Plus rotary hammer	Carbide tipped; 2-cutter or 4-cutter	10mm SDS Plus shank; common construction sizes	Fast-moving contractor range	SDS Plus bits
Shank	SDS Max	Large concrete holes and heavy-duty work	SDS Max hammer bit	SDS Max rotary hammer	Stronger carbide tip and body	18mm SDS Max shank; larger diameter/long length	Higher value product line	SDS Max guide
Shank	Morse taper / reduced shank	Large twist drill and industrial machine use	Large HSS twist drill	Drill press, lathe tailstock, industrial chuck	M2/6542 HSS or cobalt by material	Confirm taper number or reduced shank size	Machine compatibility before price	Shank types
MATERIAL GRADE / COATING
Color block	Selection dimension	Use scenario	Recommended product	Shank / machine	Material / coating	Size / standard logic	Quotation focus	Related page
Grade	HSS 4341 economy	Retail sets, DIY, light-duty mixed materials	Economy HSS drill bit	Round/hex shank	4341 HSS, bright or black finish	Common metric sets and small diameters	Entry price, packaging and broad stock	HSS products
Grade	M2 / 6542 HSS standard	Workshop steel drilling and distributor line	Standard HSS twist drill bit	Round shank, drill press or handheld	M2/6542 with black oxide or TiN optional	DIN 338 and DIN 340 common	Better durability than economy line	Materials guide
Grade	M35 cobalt	Stainless steel and harder steel	Cobalt twist drill bit	Drill press preferred	About 5% cobalt, split point recommended	Lower RPM, cutting fluid, controlled feed	Best value cobalt line	M35 vs M42
Grade	M42 cobalt premium	Production stainless and heat-heavy drilling	Premium cobalt drill bit	Rigid machine preferred	About 8% cobalt, more heat resistant	Useful where M35 life is not enough	Premium line, but more brittle	M35 vs M42
Grade	Solid carbide	CNC precision and abrasive workpieces	Solid carbide drill bit	CNC / rigid machine	Ultra-fine grain carbide; TiAlN optional	Runout, tolerance and coolant matter	Cost per hole and precision	Carbide vs HSS
Grade	TiN / TiAlN / black oxide	Surface treatment and market positioning	Coated HSS/cobalt/carbide drill	Depends on base drill	TiN for appearance/wear; TiAlN for heat; black oxide for general use	Coating does not replace correct base material	Shelf appeal and performance upgrade	Materials guide
SIZE / STANDARD / PACKAGING
Color block	Selection dimension	Use scenario	Recommended product	Shank / machine	Material / coating	Size / standard logic	Quotation focus	Related page
Spec	Metric drill bit sets	Global markets, maintenance kits, factory users	HSS / cobalt set	Round or hex shank	4341/M2/M35 by market level	1–10mm, 1–13mm, 1–20mm sets common	Size completeness and clear marking	Size chart
Spec	Tap drill / clearance holes	Threading, fastener assembly, machining	HSS twist drill bit exact sizes	Drill press preferred	M2/M35 depending on material	Tap drill chart and tolerance matter	Exact diameter, not approximate size	Tap vs clearance
Spec	Long series / extra-long drills	Deep holes and hard-to-reach drilling	DIN 340 / DIN 1869 HSS drill	Drill press or controlled handheld	HSS or cobalt by material	Long flute and total length must be confirmed	Deflection, chip evacuation and breakage risk	Failure guide
Spec	Private label packaging	Importer, wholesaler, retail channels	Any product family	Box, blister, plastic tube, bulk pack	Quality grade matched to market segment	Label, barcode, language and size chart	Brand consistency and reorder clarity	OEM drill bits
Spec	Sample / trial order logic	New distributor testing real workpieces	Mixed sample pack by category	Match customer machines	Choose 2–3 grades, not one random size	Test on actual material before bulk order	Reduce wrong bulk purchases	Drill Bits page

Recommended Quotation Flow

Confirm workpiece and machine first.
Choose product family: HSS, cobalt, carbide, SDS, step or hole saw.
Confirm shank, diameter range, working length and coating.
Choose packaging: bulk, plastic box, blister card, private label or neutral packing.
Test 2–3 matched samples before bulk order.

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