Spade Bits

Flat-blade boring bits in carbon steel — available in 6″ and 16″ lengths, with 1/4″ hex shank extensions for deep-hole applications.

1/4″–1-1/2″ Diameter Range
6″ / 16″ Available Lengths
1/4″ Hex Shank Type
Carbon Steel Material

6″ Length

Standard-length spade bits for general-purpose boring in wood, particle board, and similar materials.

Length6 inches Shank1/4″ Hex Sizes1/4″ – 1-1/2″
MRO / Bits
Item No. Size
TH-SB-88804.1/41/4″
TH-SB-88805.5/165/16″
TH-SB-88806.3/83/8″
TH-SB-88807.7/167/16″
TH-SB-88808.1/21/2″
TH-SB-88809.9/169/16″
Item No. Size
TH-SB-88810.5/85/8″
TH-SB-88811.11/1611/16″
TH-SB-88812.3/43/4″
TH-SB-88813.13/1613/16″
TH-SB-88814.7/87/8″
TH-SB-88815.15/1615/16″
Item No. Size
TH-SB-88816.11″
TH-SB-88818.1-1/81-1/8″
TH-SB-88820.1-1/41-1/4″
TH-SB-88822.1-3/81-3/8″
TH-SB-88824.1-1/21-1/2″

16″ Length

Extended-length bit for drilling through thick stock, multiple layers, or reaching into confined framing cavities.

Length16 inches Shank1/4″ Hex
MRO / Bits
Item No. Size
TH-SB-88812.3/4X163/4″

Extensions

1/4″ hex shank extensions that connect to any spade bit in this line, adding reach for deep-bore electrical and plumbing work.

Shank1/4″ Hex Options4″ · 6″ · 12″
MRO / Bits
Item No. Length
TH-SB-EXT.100MM-1/4X44″
TH-SB-EXT.150MM-1/4X66″
TH-SB-EXT.300MM-1/4X1212″