Bosch DSBE1006 6" Extension For Daredevil Spade Bits 6" straight extension 1/4" hex shank Full-cone threaded tip Hex power groove reduces slippage Drills 2.4 times faster with 53% less force than leading competitor  

Bosch DSBE1012 12 in. Extension for Daredevil Spade Bits Bosch Daredevil spade bits are specially designed for professional quality speed and ease of use. A full-cone threaded tip pulls the bit through the material with little effort and vibration than...

Drillco 1100A112 AIRCRAFT EXTENSION BIT 3/16" X 6" Surface treated with jobber flute lengths for drilling holes in hard to reach places  Heavy duty construction for portable or machine drilling in high tensile strength alloy steels...

Drillco High Speed Steel Black Oxide Aircraft Extension Drill Bit, 1/4" x 6" This 6" Aircraft Extension Drill is perfect for heavy duty construction for portable or machine drilling in high tensile strength alloy steels. Made with premium high speed...

Irwin 88601 Speedbor 12 in. Woodboring Bit Extension- Not to be used with quick change woodboring bits

Irwin 88702 Speedbor 6 in. Woodboring Bit Extension- Not to be used with quick change woodboring bits

Lenox 3084655X Standard Hole Saw Extension 5-1/2" Extension (1/pack) 1/2 & larger Chuck Fits arbors 2L,3L  

Lenox 3084712X 12" Standard Hole Saw Extension 12" Extension (1/pack) 1/2 & larger Chuck Fits arbors 2L,3L

Lenox 3084818X 18" Standard Hole Saw Extension 18" Extension (1/pack) 1/2 & larger Chuck Fits arbors 2L,3L

Milwaukee 48-20-6940 PLUSLOK™ SDS+ 12 in. Extension Milwaukee SDS+ PLUSLOK™ extensions provide increased access in tough to reach areas and around obstructions. The extensions are universal, fitting all brands of SDS+ rotary hammers and...

Milwaukee 48-20-6945 PLUSLOK™ SDS+ 18 in. Extension Milwaukee SDS+ PLUSLOK™ extensions provide increased access in tough to reach areas and around obstructions. The extensions are universal, fitting all brands of SDS+ rotary hammers and...

Milwaukee 48-28-1020 12 in. x 1/4 in. Universal QUIK-LOK™ Extension Description The 1/4 in. universal Quik-Lok™ extension has an innovative design that fits all 1/4 in. shanks - with or without a power-groove. The unique design requires no...