Feature:1/4: High quality multi-blade drill bit with replaceable tip. The blade can be rotated to the new cutting edge without changing the position of the tool holder! The set includes (5) 3/4" precision shank drills, each with a C6 carbide blade (with chip breaker), (5) a spare blade, (2) wrenches and a wooden box, 2 pcs. A" type 0 degrees, used for turning, end faces, boring and chamfering (including right-hand and left-hand versions)2 pcs. "B" type 15 degrees for turning, face, boring and guiding angle (including right and left side versions)2 pcs. "B" type 15 degrees for turning, face, boring and guiding angle (including right and left side versions)1 "E" type 30 degrees for turning, face, boring, chamfering, tapping and v-grooveInterchangeable blades for setFeature:3/8": including 5 blades TCMT 110204, C6 carbide tip2-piece "A" type for turning, rear-facing, boring and chamfering2-piece "B" for turning, face, boring and chamferingComposed of 1 part "E" for turning, face, boring, chamfering, tapping and V-grooving Package included:1 set indexing carbide insert tool lathe