#40 (0.0980) Diameter. 1.900" Working Length. 2.150" Body Length. 1/4-28 thread. Made of extra durable Cobalt Steel. Also used as replacement bit for the rivet removal tools (1341A & 1341S).

Complete drill index with storage case. M35 Cobalt steel with 135 degree spilt point. Bright Finish.

U (0.3680), Cobalt, 135 degree split point. Overall length 5". Pack of 6 each.

#49 (0.0730), 135 degree split point. High speed steel. 12" Aircraft Extension series

#53 (0.0595), 135 degree split point. High speed steel. 12" Aircraft Extension series

Y (0.4040), 135 degree split point. High speed steel. 12" Aircraft Extension series

1/4" (0.2500") Diameter. 1.000" Working Length. 1.300" Body Length. 1/4-28 thread. Made of extra durable Cobalt Steel.

3/32" (0.0938), Cobalt, 135 degree split point, jobbers length. Overall length 2-1/4"

Shank diameter: .110-.128". overall length: 2-1/4". taper: 1/4" per foot. Used for cutting, trimming and routing

Left hand drill set goes from 1/16-1/4". Used for drilling our broken studs, bolts, and screws. 13 piece set comes with metal case to keep things organized.

#40 Diameter 12" long Aircraft Extension Drill Bit. Made of high speed steel.

#21 (0.1590") Diameter. 0.500" Working Length. 0.750" Body length. 1/4-28 thread. Made of extra durable Cobalt Steel.