CMT 801.158.11B Mortising Bit w/Bearing 5/8" x 3/4" S=1/4" Bolted Column Caps 100 is a 10 diameter

100 is a 10 diameter 4 Flute Dowel Drill (Extra-Long Series (105mm))

Medium Aluminum Cutting (3/32" to 1/4" thick stock)

Total Length (L) 93mm

and why does it matter

sand-lightweight concrete

CMT 801.158.11B Mortising Bit w/Bearing 5/8" x 3/4" S=1/4" Bolted Column Caps 100 is a 10 diameterThe CMT 801. 158. 11B is a Mortising Bit with Bearing Guide. Mortising bits create flat bottom mortise slots for hinge mortising, lock pockets, and loose tenon joinery. SPECIFICATIONS Diameter (D) 5 8" Cutting Height (I) 3 4" Total Length (L) 2 1 4" Shank (S) 1 4" Number of Teeth 2 Product Type Mortising Bit with Bearing Guide Shank 1 4" Blade Material Carbide Tipped (TCT) Rotation Right hand (RH) Country of Origin Made in Italy COMPATIBLE MACHINES