Feature(may vary by option.)
●Each set includes: 13 counterbores - 26 pilots
●Counterbores: 1/4 to 1 by 16ths
●Pilots: 1/8, 5/32, 3/16 and 1/4 with 3/32 shank, 3/16, 7/32, 1/4, 9/32 and 5/16 with 5/32 shank, 1/4, 5/16, 3/8, 7/16 and 1/2 with 3/16 shanks, 5/16, 3/8, 7/16, 1/2, 9/16 and 5/8 with 1/4 shank, 3/8, 7/16, 1/2, 9/16, 5/8, and 3/4 with 5/16 shank.
●Made of H.S.S. and precision ground
●Solid wood excellent packing
[Inch]
[Metric]
[39 Pcs & Set]
Description
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"