IRWIN 4935704 QUICK CHANGE EXTENSTION, 6-IN.

IRWIN 4935704 - QUICK CHANGE EXTENSTION, 6-IN. - 1/4" QUICK CHANGE 6" EXTENSTION, PATENTED JAW DESIGN HOLDS BITS SECURELY ON 6 FLATS AS WELL AS BALL DETENT BITS, LOCK-N-LOAD SYSTEM FOR ONE HANDED QUICK RELEASE, 1/4" RANGE HOLDS INSERT BITS, CARBON STEEL CONSTRUCTION SLEEVE & BODY FOR DURABILITY & LIFE, FITS ALL IRWIN SPEEDBOR BLUE GROOVES, SPEEDBOR MAX SIZES: 7/16" TO 1-1/4", ALL FASTENER DRIVES, UNIBIT SIZES: #1, #2, #10 & #12, 1/4" HOLE SAW ARBOR SIZES 9/16" TO 1-3/16", COUNTERSINKS SIZE #4 TO #12. FOR USE WITH ALL SPEEDBOR, LOCK-N-LOAD. 1/4-INCH GROOVED HEX SHANK BITS & HUNDREDS OF OTHER POWER TOOL ACCESSORIES USING 1/4-INCH GROOVED HEX S - EQUAL TO 791160