THIS LOT OF ERICKSON COLLETS INCLUDES TWO DA300 1/4 AND TWO KTC060049M UNITS. THE DA300 1/4 COLLETS HAVE AN OVERALL LENGTH OF 1 INCH, MAX. BORE DIA. OF 3/8 INCH, MAX. BODY DIA. OF 1/4 INCH, HEAD DIA. OF 3/8 INCH, CLAMPING HOLE LENGTH OF 1 INCH, AND A MIN. SIZE OF 7/32 INCH. THE KTC060049M COLLETS ARE A DA DOUBLE ANGLE TYPE, NON-COOLANT THROUGH, WITH A ROUND FACE SHAPE. THEY ARE SUITABLE FOR USE WITH ALL STANDARD K-SERIES DOUBLE-ANGLE COLLET CHUCKS AND TAPS M5 TO M8. KEY DIMENSIONS INCLUDE A CLAMPING HOLE LENGTH OF 13 MM, HEAD DIAMETER OF 19.53 MM, MAX. BORE DIAMETER OF 19.5 MM, AND AN OVERALL LENGTH OF 25.4 MM, FEATURING 1 SLOT.