75 Piece Ratcheting Tap and Die Set, SAE Metric 3887 Walkers 3 layer shelf design gives you Color:black green yellow 3 layer shelf design gives you ample space for all your items 5” Height The ratcheting T wrench provides a 5 degree ratcheting arc 3887 Tap and Die 75 Piece SetAt a GlancePatented Twist Lock Guide System reduces backwalk of die guideAuto locking feature allows for safe removal of tap adapterReversible lever eliminates hand over hand turningCarbon steel constructionLifetime warranty Product Description Patented Twist Lock Guide System reduces back walk of die guide and keeps dies centered while cutting threads