Center Drills | McMaster-Carr

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Countersink Angle

System of Measurement

Drill Bit Size

Body Diameter

Center Drill Trade Size

Material

Overall Length

Finish

Aluminum Titanium Nitride (AlTiN) Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Shank Diameter

Sold As

Shank Material

Number of Flutes

Shank Type

Screw Size

Length

Number of Countersinking Ends

Length Class

For Cutting

Point Angle

Decimal Size Equivalent

Export Control Classification Number (ECCN)

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Exempt

RoHS

Compliant

Compliant with Exemptions

REACH

10,351 Products

Center Drills

Drill cone-shaped openings to mate with lathe centers or create holes for screws

316 products

Center Drill Sets

A variety of sizes to create centered holes for lathe centers or holes for screws

17 products

Bell-Style Center Drills

Drill a 60° angled hole and an additional 120° chamfer to protect it from damage

10 products

Radius-Style Center Drills

Drill smoothly rounded holes for the most precise machining jobs

15 products

Other Products

Countersinks

Cut a cone-shaped opening in a hole to install flat-head screws and rivets flush with the surface

1,692 products

Drill Bits

Create holes in metal, wood, plastic, concrete, and more

7,762 products

Counterbores

Enlarge the top of a hole to install socket and hex head screws flush with the surface

408 products

End Mills

Cut and shape material to create precise slots, grooves, and profiles

90 products

Router Bits

Attach to routers and CNC machines to cut grooves, chamfers, and other detailed shapes

32 products

Drill/Screwdriver Bits

Quickly change between drilling countersunk holes and driving screws

6 products

Counterbore Insert Holders

Pair with inserts to create flat-bottom holes

14 products