AccusizeTools - 39 Pcs/Set HSS Interchangeable Pilot Counterbore Set, 500S-A000

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About AccusizeTools - 39 Pcs/Set HSS Interchangeable

The 13 pcs interchange counterbore and their correspondent pilot chart: Counterbore Size: 1/4''; Pilot Hole Size: 3/32"; Range of Pilot Sizes: 1/8"-3/16"; Shank for Counterbore:15/64"; Overall Length: 3-13/16" Counterbore Size: 5/16''; Pilot Hole Size: 3/32"; Range of Pilot Sizes: 1/8"-1/4"; Shank for Counterbore:19/64"; Overall Length: 3-13/16" Counterbore Size: 3/8''; Pilot Hole Size: 5/32"; Range of Pilot Sizes: 3/16''-5/16"; Shank for Counterbore:5/16"; Overall Length: 4-1/16" Counterbore Size: 7/16''; Pilot Hole Size: 5/32"; Range of Pilot Sizes: 3/16''-3/8"; Shank for Counterbore:3/8"; Overall Length: 4-1/16" Counterbore Size: 1/2''; Pilot Hole Size: 3/16"; Range of Pilot Sizes: 1/4-7/16"; Shank for Counterbore:7/16"; Overall Length: 4-5/16" Counterbore Size: 9/16''; Pilot Hole Size: 3/16"; Range of Pilot Sizes: 1/4"-1/2"; Shank for Counterbore:7/16"; Overall Length: 4-5/16" Counterbore Size: 5/8''; Pilot Hole Size: 3/16"; Range of Pilot Sizes: 1/4"-9/16"; Shank for Counterbore:1/2"; Overall Length: 5-1/8" Counterbore Size: 11/16''; Pilot Hole Size: 3/16"; Range of Pilot Sizes: 1/4"-5/8"; Shank for Counterbore:1/2"; Overall Length: 5-1/8" Counterbore Size: 3/4''; Pilot Hole Size: 1/4"; Range of Pilot Sizes: 5/16''-11/16''; Shank for Counterbore:1/2"; Overall Length: 5-3/8" Counterbore Size: 13/16''; Pilot Hole Size: 1/4"; Range of Pilot Sizes: 5/16''-3/4''; Shank for Counterbore:5/8"; Overall Length: 5-3/8" Counterbore Size: 7/8''; Pilot Hole Size: 1/4"; Range of Pilot Sizes: 5/16''-13/16''; Shank for Counterbore:3/4"; Overall Length: 5-3/8" Counterbore Size: 15/16''; Pilot Hole Size: 1/4"; Range of Pilot Sizes: 5/16''-7/8''; Shank for Counterbore:3/4"; Overall Length: 6-1/8" Counterbore Size: 1''; Pilot Hole Size: 5/16"; Range of Pilot Sizes: 3/8'-15/16''; Shank for Counterbore:3/4"; Overall Length: 6-3/8"