ReviewsStraight flute Counterbore

Viking Drill and Tool 12270 CR-4SP 4 piece Set Type 50-UB Standard Flute Magnum Super Premium Car Reamer

Straight Shank with 3-Equal-Flats to Fit 3/8'' or 1/2" Chuck.
Include size: 3/8" (fit 3/8'' shank chuck), 1/2", 5/8", 3/4" (fit 1/2'' shank chuck).
Straight shank with stop collar to prevent the reamer running through the hole.

High speed steel, high quality and durable..
It includes 7 sizes in one counterbore set(M3, M4, M5, M6, M8, M10, M12)..
An essential hardware tool for industrial..
The counterbore set works great in counter bored hole..
Apply to cast iron, steel, copper, aluminum, conventional hardness of stainless steel and die steel, etc..

Ultra-sharp tip for fast straight holes in clean wood or stacked lumber.
Black oxide coated flutes for fast chip removal.
Small hole in flute for easily pulling wires and cables through walls, ceilings and floors.
Extended length for access in hard to reach areas.
Maximum performance in cordless and corded drill drivers.

Ultra-sharp tip for fast straight holes in clean wood or stacked lumber.
Black oxide coated flutes for fast chip removal.
Small hole in flute for easily pulling wires and cables through walls, ceilings and floors.
Extended length for access in hard to reach areas.
Maximum performance in cordless and corded drill drivers.

Specifications: Cutting dia.: 5.6mm / 0.22".
accuracy: D4. High-speed steel tool with cobalt is good for general purpose applications.
Uncoated Tool: Features just the base substrate without any additional treatment or coatings. Heat treated and quenched for stable performance, suitable for wide ranges of applications.
Round Shank: Can be used with a wide variety of tool holding systems. Good for use in through or blind holes and used for light cut, repair work, removing stock.
Features: Straight flute tool allows chips to collect in the flutes when cutting, well suited for most applications in shallow cuts. Reamer is with high hardness, toughness, wear resistance, long service life.
Application: Designed for accurate reaming in stainless steel, alloy steel and other metal materials, used on equipment including screw machines, turret lathes, drill presses and machining centers.

Specifications: Cutting dia.: 3mm / 0.12".
accuracy: H7. Tungsten carbide tool is hardened to 50HRC, good for general purpose applications.
Uncoated Tool: Features just the base substrate without any additional treatment or coatings. Heat treated and quenched for stable performance, suitable for wide ranges of applications.
Round Shank: Can be used with a wide variety of tool holding systems. Good for use in through or blind holes and used for light cut, repair work, removing stock.
Features: Straight flute tool allows chips to collect in the flutes when cutting, well suited for applications in shallow cuts. Tungsten carbide reamer is with high hardness and strong wear resistance for long service life.
Application: Designed for accurate reaming in stainless steel, alloy steel and other metal materials, used on equipment including screw machines, turret lathes, drill presses and machining centers.