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Choose the right countersink angle, body diameter, and number of flutes for your application.
Fluteless Smooth-Finish Countersinks for Screws
High-Speed Steel
 |
0 Flutes |
Dia. | Uncoated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
For Hole Dia. | Body | Shank | Overall Lg. | Shank Type | Mfr. | Each | |||
0 Flutes | |||||||||
82° Countersink Angle | |||||||||
| 5/32" to 13/32" | 7/16" | 1/4" | 1 21/32" | Round | Republic Drill | 2739A32 | 000000 | ||
| 3/16" to 17/32" | 9/16" | 1/4" | 1 7/8" | Round | Republic Drill | 2739A33 | 00000 | ||
| 5/16" to 25/32" | 13/16" | 1/4" | 2 1/8" | Round | Republic Drill | 2739A44 | 00000 | ||
| 5/16" to 25/32" | 13/16" | 1/2" | 2 5/8" | Round | Republic Drill | 2739A34 | 00000 | ||
| 7/16" to 7/8" | 15/16" | 1/2" | 2 19/32" | Round | Republic Drill | 2739A45 | 00000 | ||
| 9/16" to 1 1/16" | 1 1/8" | 1/2" | 2 29/32" | Round | Republic Drill | 2739A35 | 00000 | ||
| 5/8" to 1 15/32" | 1 1/2" | 1/2" | 2 7/8" | Round | Republic Drill | 2739A46 | 000000 | ||
| 3/4" to 1 3/4" | 1 3/4" | 5/8" | 3 1/8" | Round | Republic Drill | 2739A47 | 000000 | ||
| 1" to 2" | 2 1/8" | 5/8" | 3 1/2" | Round | Republic Drill | 2739A48 | 000000 | ||
| 1 1/4" to 2 1/2" | 2 5/8" | 3/4" | 3 7/8" | Round | Republic Drill | 2739A49 | 000000 | ||
90° Countersink Angle | |||||||||
| 5/32" to 13/32" | 7/16" | 1/4" | 1 21/32" | Round | Republic Drill | 2739A37 | 00000 | ||
| 3/16" to 17/32" | 9/16" | 1/4" | 1 7/8" | Round | Republic Drill | 2739A38 | 00000 | ||
| 5/16" to 25/32" | 13/16" | 1/4" | 2 1/8" | Round | Republic Drill | 2739A81 | 00000 | ||
| 5/16" to 25/32" | 13/16" | 1/2" | 2 5/8" | Round | Republic Drill | 2739A39 | 00000 | ||
| 9/16" to 1 1/16" | 1 1/8" | 1/2" | 2 29/32" | Round | Republic Drill | 2739A41 | 00000 | ||
Fluteless Smooth-Finish Countersinks with Pilot for Screws
High-Speed Steel
 |
0 Flutes |
These versatile, wear-resistant countersinks cut cleanly in most materials, including plastic, aluminum, and steel.
Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
Dia. | Pilot | Uncoated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Hole Dia. | Body | Shank | Dia. | Lg. | For Screw Size | Overall Lg. | Shank Type | Mfr. | Each | |||
0 Flutes | ||||||||||||
82° Countersink Angle | ||||||||||||
| 1/4" to 33/64" | 33/64" | 3/8" | 1/4" | 5/32" | 1/4" | 2" | Round | Republic Drill | 2739A64 | 000000 | ||
| 5/16" to 41/64" | 41/64" | 3/8" | 5/16" | 5/32" | 5/16" | 2 3/16" | Round | Republic Drill | 2739A66 | 00000 | ||
| 3/8" to 49/64" | 49/64" | 1/2" | 3/8" | 5/32" | 3/8" | 2 1/2" | Round | Republic Drill | 2739A68 | 00000 | ||
| 7/16" to 53/64" | 53/64" | 1/2" | 7/16" | 7/32" | 7/16" | 2 11/16" | Round | Republic Drill | 2739A71 | 00000 | ||
| 1/2" to 15/16" | 15/16" | 1/2" | 1/2" | 1/4" | 1/2" | 2 11/16" | Round | Republic Drill | 2739A73 | 00000 | ||
Carbide-Insert Countersinks for Screws
Carbide
 |
With Square Insert |
The hardest and most wear-resistant countersinks you can buy. They stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. They last 10 to 20 times longer than their closest alternative, cobalt steel. Carbide can be brittle, however, so use a rigid machine tool holder to prevent breakage.
Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
Countersinks | Replacement Screws | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Insert | Uncoated | ||||||||||||||
Shank Dia. | For Hole Dia. | For Min. Hole Dia. | Overall Lg. | Shank Type | Shape | Code | Size | Thk. | Mfr. | Each | Each | ||||
1 Flute | |||||||||||||||
82° Countersink Angle | |||||||||||||||
| 1/2" | 1/4" to 3/4" | 1/4" | 2 3/8" | Round | Triangle | TPGH-321 | 3/8" | 1/8" | Republic Drill | 29245A61 | 0000000 | 29245A96 | 00000 | ||
| 1/2" | 1/2" to 1 3/4" | 1/2" | 2 3/8" | Round | Square | SPGH-433 | 1/2" | 3/16" | Republic Drill | 29245A62 | 000000 | 29245A96 | 0000 | ||
| 3/4" | 1 1/4" to 2 1/2" | 1 1/4" | 2 3/8" | Round | Square | SPGH-433 | 1/2" | 3/16" | Republic Drill | 29245A63 | 000000 | 29245A96 | 0000 | ||
90° Countersink Angle | |||||||||||||||
| 1/2" | 1/4" to 3/4" | 1/4" | 2 3/8" | Round | Triangle | TPGH-321 | 3/8" | 1/8" | Republic Drill | 29245A64 | 000000 | 29245A96 | 0000 | ||
| 1/2" | 1/2" to 1 3/4" | 1/2" | 2 3/8" | Round | Square | SPGH-433 | 1/2" | 3/16" | Republic Drill | 29245A65 | 000000 | 29245A96 | 0000 | ||
| 3/4" | 1 1/4" to 2 1/2" | 1 1/4" | 2 3/8" | Round | Square | SPGH-433 | 1/2" | 3/16" | Republic Drill | 29245A66 | 000000 | 29245A96 | 0000 | ||
 |
Individual Carbide Insert Case |
Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.
Titanium Nitride (TiN)-Coated Carbide—Withstand heat, corrosion, and abrasion better than uncoated inserts, so they stay sharp over longer periods.
Each | Package | ||||||
|---|---|---|---|---|---|---|---|
Material | Insert Shape | Each | Pkg. Qty. | Pkg. | |||
| Uncoated Carbide | Triangle | 29245A67 | 00000 | 10 | 29245A188 | 000000 | |
| Uncoated Carbide | Square | 29245A68 | 00000 | 10 | 29245A291 | 000000 | |
| Titanium Nitride (TiN)-Coated Carbide | Triangle | 29245A71 | 00000 | 10 | 29245A306 | 00000 | |
| Titanium Nitride (TiN)-Coated Carbide | Square | 29245A72 | 00000 | 10 | 29245A918 | 000000 | |
Countersink Drill Bits for Screws
 |
Also known as step drill bits, these bits countersink as they drill. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws. After multiple sharpenings, the drill bit diameter may become smaller.
Dia. | Lg. | 82° Countersink Angle | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body | Step | Step | Overall | Shank Dia. | Point Angle | For Use On | Mfr. | Each | |||
Uncoated High-Speed Steel | ||||||||||||
2 Flutes | ||||||||||||
| No. 6 | 0.281" | 0.142" | 1/2" | 4 1/4" | 0.2813" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A51 | 000000 | ||
| No. 8 | 0.332" | 0.169" | 1/2" | 4 3/4" | 0.3320" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A52 | 00000 | ||
| No. 10 | 0.386" | 0.196" | 5/8" | 5 1/8" | 0.3860" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A53 | 00000 | ||
| 1/4" | 1/2" | 0.257" | 11/16" | 6" | 0.5000" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A54 | 00000 | ||
| 5/16" | 5/8" | 0.320" | 3/4" | 7 1/8" | 0.6250" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A55 | 00000 | ||
| 3/8" | 3/4" | 0.383" | 7/8" | 5" | 0.7500" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A56 | 00000 | ||
| 7/16" | 0.813" | 0.446" | 1" | 5 1/4" | 0.8125" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A58 | 000000 | ||
| 1/2" | 7/8" | 0.510" | 1" | 5 1/2" | 0.8750" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A57 | 000000 | ||
Fluteless Smooth-Finish Countersink Sets with Pilot for Screws
 |
Cut a smooth, accurate seat for your screw head on the first pass. The built-in pilot centers the countersink while the hollow body prevents chip buildup, vibration, and wobbling.
High-Speed Steel—These versatile, wear-resistant countersinks cut cleanly in most materials, including plastic, aluminum, and steel.
Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
82° Countersink Angle | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
No. of Flutes | No. of Pieces | For Hole Dia. | Finish | Shank Type | Container Type | Mfr. | Each | |||
High-Speed Steel | ||||||||||
| 0 | 5 | 1/4" to 15/16" | Uncoated | Round | Wood Stand | Republic Drill | 2739A29 | 0000000 | ||
Fluteless Smooth-Finish Countersinks for Rivets
|
High-Speed Steel
Dia. | Uncoated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
For Hole Dia. | Body | Shank | Overall Lg. | Shank Type | Mfr. | Each | |||
0 Flutes | |||||||||
100° Countersink Angle | |||||||||
| 5/32" to 13/32" | 7/16" | 1/4" | 1 21/32" | Round | Republic Drill | 2739A59 | 000000 | ||
| 3/16" to 17/32" | 9/16" | 1/4" | 1 7/8" | Round | Republic Drill | 2739A61 | 00000 | ||
| 5/16" to 25/32" | 13/16" | 1/2" | 2 5/8" | Round | Republic Drill | 2739A62 | 00000 | ||
| 9/16" to 1 1/16" | 1 1/8" | 1/2" | 2 29/32" | Round | Republic Drill | 2739A63 | 00000 | ||
Fluteless Smooth-Finish Countersink Sets for Screws
 |
With a hollow body and single cutting edge, these countersinks make less contact with the hole than solid-body countersinks. The reduced friction minimizes vibration and leaves a more accurate, tight-fitting recess for your screw head.
High-Speed Steel—These versatile, wear-resistant countersinks cut cleanly in most materials, including plastic, aluminum, and steel.
Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
Fluteless Smooth-Finish Countersinks with Two Countersinking Ends for Rivets
 |
High-Speed Steel
Dia. | Uncoated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
For Hole Dia. | Body | Shank | Overall Lg. | Shank Type | Mfr. | Each | |||
0 Flutes | |||||||||
100° Countersink Angle | |||||||||
| 1/16" to 15/64" | 1/4" | 1/4" | 1 7/8" | Round | Republic Drill | 2739A58 | 000000 | ||
Fluteless Smooth-Finish Countersink Sets for Rivets
|
With a hollow body and single cutting edge, these countersinks make less contact with the hole than solid-body countersinks. The reduced friction minimizes vibration and leaves a more accurate, tight-fitting recess for your screw head.
High-Speed Steel—These versatile, wear-resistant countersinks cut cleanly in most materials, including plastic, aluminum, and steel.
Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
For Hole Dia. | 100° Countersink Angle | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Flutes | No. of Pieces | 1/4" Shank | 1/2" Shank | Finish | Shank Type | Container Type | Mfr. | Each | |||
High-Speed Steel | |||||||||||
| 0 | 5 | 1/16", 5/32", 3/16" | 5/16", 9/16" | Uncoated | Round | Wood Stand | Republic Drill | 2739A28 | 0000000 | ||
Counterbores for High-Profile Rounded-Head Screws
High-Speed Steel
 |
Durable and wear resistant, these counterbores make accurate cuts in most materials without chipping or cracking.
Uncoated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body Dia. | Overall Lg. | Shank Type | No. of Flutes | Pilot Lg. | Mfr. | Each | |||
| No. 0 | 0.110" | 2 1/2" | Round | 2 | 0.110" | Republic Drill | 2909A22 | 000000 | ||
| No. 1 | 0.133" | 2 1/2" | Round | 2 | 0.170" | Republic Drill | 2909A23 | 00000 | ||
| No. 2 | 0.155" | 2 1/2" | Round | 2 | 0.120" | Republic Drill | 2909A13 | 00000 | ||
| No. 3 | 0.176" | 2 1/2" | Round | 2 | 0.120" | Republic Drill | 2909A14 | 00000 | ||
| No. 4 | 0.198" | 2 5/8" | Round | 2 | 0.170" | Republic Drill | 2909A15 | 00000 | ||
| No. 5 | 0.220" | 2 5/8" | Round | 2 | 0.220" | Republic Drill | 2909A16 | 00000 | ||
| No. 6 | 0.241" | 2 5/8" | Round | 2 | 0.230" | Republic Drill | 2909A17 | 00000 | ||
| No. 8 | 0.285" | 2 3/4" | Round | 2 | 0.120" | Republic Drill | 2909A18 | 00000 | ||
| No. 10 | 0.328" | 2 7/8" | Round | 2 | 0.190" | Republic Drill | 2909A19 | 00000 | ||
| No. 12 | 0.372" | 3" | Round | 2 | 0.250" | Republic Drill | 2909A21 | 00000 | ||
Fluteless Smooth-Finish Countersinks with Two Countersinking Ends for Screws
Fluteless Smooth-Finish Countersink Sets for Lathe Centers
|
With a hollow body and single cutting edge, these countersinks make less contact with the hole than solid-body countersinks. The reduced friction minimizes vibration and leaves a more accurate, tight-fitting recess for your screw head.
High-Speed Steel—These versatile, wear-resistant countersinks cut cleanly in most materials, including plastic, aluminum, and steel.
Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
For Hole Dia. | 60° Countersink Angle | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Flutes | No. of Pieces | 1/4" Shank | 1/2" Shank | Finish | Shank Type | Container Type | Mfr. | Each | |||
High-Speed Steel | |||||||||||
| 0 | 5 | 1/8", 3/16", 5/16" | 7/16", 11/16" | Uncoated | Round | Wood Stand | Republic Drill | 2739A27 | 0000000 | ||
Fluteless Smooth-Finish Countersinks for Lathe Centers
High-Speed Steel
|
0 Flutes |
Dia. | Uncoated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
For Hole Dia. | Body | Shank | Overall Lg. | Shank Type | Mfr. | Each | |||
0 Flutes | |||||||||
60° Countersink Angle | |||||||||
| 3/16" to 13/32" | 7/16" | 1/4" | 1 25/32" | Round | Republic Drill | 2739A53 | 000000 | ||
| 5/16" to 17/32" | 9/16" | 1/4" | 1 15/16" | Round | Republic Drill | 2739A54 | 00000 | ||
| 7/16" to 25/32" | 13/16" | 1/4" | 2 3/8" | Round | Republic Drill | 2739A55 | 00000 | ||
| 7/16" to 25/32" | 13/16" | 1/2" | 2 3/4" | Round | Republic Drill | 2739A56 | 00000 | ||
| 11/16" to 1 3/32" | 1 1/8" | 1/2" | 2 11/64" | Round | Republic Drill | 2739A57 | 00000 | ||
Carbide-Insert Countersinks for Rivets
Carbide
|
With Square Insert |
The hardest and most wear-resistant countersinks you can buy. They stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. They last 10 to 20 times longer than their closest alternative, cobalt steel. Carbide can be brittle, however, so use a rigid machine tool holder to prevent breakage.
Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
Countersinks | Replacement Screws | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Insert | Uncoated | ||||||||||||||
Shank Dia. | For Hole Dia. | For Min. Hole Dia. | Overall Lg. | Shank Type | Shape | Code | Size | Thk. | Mfr. | Each | Each | ||||
1 Flute | |||||||||||||||
100° Countersink Angle | |||||||||||||||
| 1/2" | 1/4" to 3/4" | 1/4" | 2 3/8" | Round | Triangle | TPGH-321 | 3/8" | 1/8" | Republic Drill | 29245A81 | 0000000 | 29245A96 | 00000 | ||
| 1/2" | 1/2" to 1 3/4" | 1/2" | 2 3/8" | Round | Square | SPGH-433 | 1/2" | 3/16" | Republic Drill | 29245A82 | 000000 | 29245A96 | 0000 | ||
| 3/4" | 1 1/4" to 2 1/2" | 1 1/4" | 2 3/8" | Round | Square | SPGH-433 | 1/2" | 3/16" | Republic Drill | 29245A83 | 000000 | 29245A96 | 0000 | ||
|
Individual Carbide Insert Case |
Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.
Titanium Nitride (TiN)-Coated Carbide—Withstand heat, corrosion, and abrasion better than uncoated inserts, so they stay sharp over longer periods.
Each | Package | ||||||
|---|---|---|---|---|---|---|---|
Material | Insert Shape | Each | Pkg. Qty. | Pkg. | |||
| Uncoated Carbide | Triangle | 29245A67 | 00000 | 10 | 29245A188 | 000000 | |
| Uncoated Carbide | Square | 29245A68 | 00000 | 10 | 29245A291 | 000000 | |
| Titanium Nitride (TiN)-Coated Carbide | Triangle | 29245A71 | 00000 | 10 | 29245A306 | 00000 | |
| Titanium Nitride (TiN)-Coated Carbide | Square | 29245A72 | 00000 | 10 | 29245A918 | 000000 | |
Carbide-Insert Countersinks for Lathe Centers
Carbide
|
With Square Insert |
The hardest and most wear-resistant countersinks you can buy. They stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. They last 10 to 20 times longer than their closest alternative, cobalt steel. Carbide can be brittle, however, so use a rigid machine tool holder to prevent breakage.
Manufacturer—We source from trusted manufacturers who vet raw materials for purity and use diamond grinding wheels to machine precise edges. This keeps cutting surfaces smooth and free of microscopic burrs. Because our suppliers clean their wheels more often than other manufacturers, each countersink is consistently ground to create uniform holes every time.
Countersinks | Replacement Screws | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Insert | Uncoated | ||||||||||||||
Shank Dia. | For Hole Dia. | For Min. Hole Dia. | Overall Lg. | Shank Type | Shape | Code | Size | Thk. | Mfr. | Each | Each | ||||
1 Flute | |||||||||||||||
60° Countersink Angle | |||||||||||||||
| 1/2" | 1/4" to 3/4" | 1/4" | 2 3/8" | Round | Triangle | TPGH-321 | 3/8" | 1/8" | Republic Drill | 29245A57 | 0000000 | 29245A96 | 00000 | ||
| 1/2" | 1/2" to 1 3/4" | 1/2" | 2 3/4" | Round | Square | SPGH-433 | 1/2" | 3/16" | Republic Drill | 29245A58 | 000000 | 29245A96 | 0000 | ||
| 3/4" | 1 1/4" to 2 1/2" | 1 1/4" | 2 3/4" | Round | Square | SPGH-433 | 1/2" | 3/16" | Republic Drill | 29245A59 | 000000 | 29245A96 | 0000 | ||
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Individual Carbide Insert Case |
Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.
Titanium Nitride (TiN)-Coated Carbide—Withstand heat, corrosion, and abrasion better than uncoated inserts, so they stay sharp over longer periods.
Each | Package | ||||||
|---|---|---|---|---|---|---|---|
Material | Insert Shape | Each | Pkg. Qty. | Pkg. | |||
| Uncoated Carbide | Triangle | 29245A67 | 00000 | 10 | 29245A188 | 000000 | |
| Uncoated Carbide | Square | 29245A68 | 00000 | 10 | 29245A291 | 000000 | |
| Titanium Nitride (TiN)-Coated Carbide | Triangle | 29245A71 | 00000 | 10 | 29245A306 | 00000 | |
| Titanium Nitride (TiN)-Coated Carbide | Square | 29245A72 | 00000 | 10 | 29245A918 | 000000 | |
Counterbore Drill Bits
 |
Often called step drill bits, these drill and counterbore holes at the same time. After drilling and counterboring, tap the hole and install your fastener. The body diameter may decrease after multiple sharpenings.
Dia. | Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | Body | Step | Step | Overall | Point Angle | For Use On | Mfr. | Each | |||
Uncoated High-Speed Steel | |||||||||||
| No. 6 | 0.250" | 0.15" | 1/2" | 4" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A31 | 000000 | ||
| No. 8 | 0.290" | 0.178" | 1/2" | 4 1/4" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A32 | 00000 | ||
| No. 10 | 0.332" | 0.204" | 5/8" | 4 3/4" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A33 | 00000 | ||
| 1/4" | 0.406" | 0.281" | 11/16" | 5 1/4" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A34 | 00000 | ||
| 5/16" | 0.500" | 0.344" | 3/4" | 6" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A35 | 00000 | ||
| 3/8" | 0.594" | 0.406" | 7/8" | 7 1/8" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A36 | 00000 | ||
| 7/16" | 0.688" | 0.469" | 1" | 7 5/8" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A38 | 00000 | ||
| 1/2" | 0.781" | 0.531" | 1" | 9 7/8" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Republic Drill | 8914A37 | 000000 | ||
Fluteless Smooth-Finish Countersinks with Two Countersinking Ends for Lathe Centers
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High-Speed Steel
Dia. | Uncoated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
For Hole Dia. | Body | Shank | Overall Lg. | Shank Type | Mfr. | Each | |||
0 Flutes | |||||||||
60° Countersink Angle | |||||||||
| 1/8" to 15/64" | 1/4" | 1/4" | 1 7/8" | Round | Republic Drill | 2739A52 | 000000 | ||
