ITEM NAME:12.7mm Shank T-Slot And T-Track Slotted Drill For Woodworking Chisels KHE.We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. Body --SSIMd Hardened Steel. Full length: about 60 mm(2-3/8"). Depth of cut: 8.7 mm(11/32"). The blade height: 12 mm(15/32").