Vintage Rotary Hammer Drill Bits with Triangular Shanks, 3 pcs, New/Other: This 3 piece lot includes: 1 pc #84-7812 - 7/8” Carbide Tipped Bit with a 10” Drilling Depth and 2 pcs #84-8410 – 3/4" Carbide Tipped Bit with 8” Drilling Depths. The bits feature triangular shanks that measure 18mm x 35mm per side with truncated corners. There are reduced round keeper shanks above that measure approx. 14mm x 22mm and above these the body shanks measure 3/4" and have a 5mm wide rounded groove near their top. Each bit has a rubber dust cap on its shank. These bits were made in Japan. The 7/8” also has the #652 and the 3/4” have the #647 stamped on them. These bits have never been used, but have surface rust from age. We are sure that this style bit (see pictures) is very hard to find and that this lot will make someone Very Happy if they have the matching Rotary Hammer Drill. This lot is sold with the Kent’s Tools 30 Day Satisfaction Guarantee.
