Whats the difference between SDS plus and SDS max drillbits?
SDS = SDS only but check the guide http://reviews.ebay.com/Rotary-Hammers-v… SDS/SDS-Plus: a 10 mm shank with two/four open grooves held by the driving wedges, and two closed grooves held by locking balls. Regular SDS bits have 2 grooves; SDS+ bits have four. SDS and SDS+ bits are interchangeable. This is the most common size and works on hammers up to 8lbs (4kg). The wedges grip an area of 75 mm² and the shank is inserted 40 mm into the chuck. SDS/SDS-Plus bits run up to 1-1/8″ diameter. SDS and SDS plus are interchangeable. However, SDS plus drill bits have four large drive/engagement grooves = and when used in a SDS plus hammerdrill a stronger connection capable of = more rotational torque results. (SDS has only two of the large grooves) SDS Max is not interchangeable with either of above but is even heavier = duty. Spline Drive is not interchangeable with any above and is
