Ingersoll Cutting Tools 38.1mm Dia, 1-1/2" Max Depth, 1-1/4" Shank Dia, 2 Insert Indexable Counterbore - Uses SHLT 1104 Inserts, 4-1/2" OAL, Weldon

EVEREDE 1-1/4" Dia, 1/2" Shank Dia, 3 Insert Indexable Counterbore - Uses TPGH 215 Inserts, 3.2" OAL, Straight Shank | Part INCB-1.250-312S

EVEREDE 1" Dia, 1/2" Shank Dia, 3 Insert Indexable Counterbore - Uses TPGH 215 Inserts, 3.2" OAL, Straight Shank | Part INCB-1.000-188S

Value Collection 1/4" Dia, 15/64" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 4" OAL, Bright Finish, High Speed Steel

Harvey Tool 0.2362" Cut Dia, 7/8" Flute Length, Solid Carbide Solid Counterbore - Altin Finish, 4 Flutes, 1/4" Shank Dia, 2-1/2 OAL | Part 2346M-C3

Value Collection 3/4" Dia, 1/4" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 3-1/8" OAL, Bright Finish, High Speed

Value Collection 5/8" Dia, 1/4" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 2-13/16" OAL, Bright Finish, High Speed

Keo | Arch Cutting Tools Solid Pilot Counterbore: 8mm Dia, 4.3mm Pilot, 3 Flutes - Socket-Head Cap Screw Compatible, Cobalt Steel | Part 56207

Value Collection 7/32" Dia, 15/64" Shank, Dia, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 3" OAL, 2-3/8" OAL Shank, Bright Finish

Made In USA 1-1/4" Dia, 1" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 6-5/8" OAL, Bright Finish, Carbide-Tipped

Value Collection 31/64" Dia, 7/16" Shank, Dia, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 4-5/16" OAL, 3-1/16" OAL Shank, Bright

Made In USA Solid Pilot Counterbore: 0.38" Dia, 1/4" Pilot, 4 Flutes - 1/4" Socket-Head Cap Screw Compatible, 5/16" Shank Dia, 5-5/8" OAL, High Speed

Made In USA Reverse Counterbore: 1-1/4" Dia, 3/8" Pilot Hole, 4 Flutes, High Speed Steel - 7/8" OAL, 1/32" Corner Rad, Standard Pilot 185-7 & 185-7

Ingersoll Cutting Tools | Gold-Twist Combination Chamfer & Countersink Drills, Maximum Drill Dia (Decimal Inch): 0.5279"

Keo | Arch Cutting Tools Solid Pilot Counterbore: 10mm Dia, 5.5mm Pilot, 3 Flutes - Socket-Head Cap Screw Compatible, Cobalt Steel | Part 56211

Interstate | Value Collection Solid Pilot Counterbore: 33mm Dia, 21mm Pilot, 3 Flutes - Cobalt Steel | Part E1419020

Made In USA Solid Pilot Counterbore: 0.398" Dia, 0.265" Pilot, 4 Flutes - 1/4" Socket-Head Cap Screw Compatible, 5/16" Shank Dia, 5-5/8" OAL, High

Value Collection 1" Dia, 3/4" Shank, Dia, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 6-3/8" OAL, 4-5/8" OAL Shank, Bright Finish

Interstate | Value Collection Solid Pilot Counterbore: 20mm Dia, 14mm Pilot, 3 Flutes - 1/2" Shank Dia, Cobalt Steel | Part E1419012

Value Collection 1-5/16" Dia, 1/2" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 5-1/2" OAL, Bright Finish, High Speed

Made In USA Reverse Counterbore: 7/8" Dia, 3/8" Pilot Hole, 4 Flutes, High Speed Steel - 5/8" OAL, 1/32" Corner Rad, Standard Pilot 185-7 & 185-7

Kounterbore | Arch Cutting Tools Solid Pilot Counterbore: 1.187" Dia, 0.766" Pilot, 3 Flutes - 3/4" Socket-Head Cap Screw Compatible, 3/4" Shank Dia

Made In USA 5/8" Dia, 1/2" Shank, Dia, 3 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 5-1/8" OAL, Bright Finish, Carbide-Tipped

Value Collection Solid Pilot Counterbore: 19/64" Dia, 11/64" Pilot, 3 Flutes - 1/4" Shank Dia, High Speed Steel | Part GH8862088

Value Collection 5/8" Dia, 1/2" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 4-1/4" OAL, Bright Finish, High Speed

Made In USA Reverse Counterbore: 1-1/4" Dia, 1/2" Pilot Hole, 4 Flutes, High Speed Steel - 7/8" OAL, 1/32" Corner Rad, Standard Pilot 185-8 & 185-8

Value Collection 1-7/16" Dia, 1-1/4" Shank, Dia, 5 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 7-7/8" OAL, 5-7/8" OAL Shank, Bright

Value Collection 3/4" Dia, 1/2" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 5-3/8" OAL, Bright Finish, High Speed

Value Collection 1-1/2" Dia, 1/2" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 5-1/2" OAL, Bright Finish, High Speed

Value Collection 27/32" Dia, 1/4" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 3-1/8" OAL, Bright Finish, High Speed

Value Collection 1-1/16" Dia, 1/2" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 5-1/2" OAL, Bright Finish, High Speed

Made In USA Reverse Counterbore: 1/2" Dia, 1/4" Pilot Hole, 4 Flutes, High Speed Steel - 1/2" OAL, 1/32" Corner Rad, Standard Pilot 185-5 & 185-5

Value Collection 15/16" Dia, 1/2" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 5-3/8" OAL, Bright Finish, High Speed

Made In USA | Value Collection 1-1/4" Dia, 1/2" Shank, Dia, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore - 5-1/2" OAL, Bright Finish

Kounterbore | Arch Cutting Tools Solid Pilot Counterbore: 0.304" Dia, 0.195" Pilot, 3 Flutes - Socket-Head Cap Screw Compatible, 1/4" Shank Dia, 3"