Drill America DWDCO9/16 9/16" Reduced Shank Cobalt Drill Bit, 1/2" Shank, Qualtech Shop By Vehicle>Chevrolet Chadwick & Trefethen 34170 15/32"

Chadwick & Trefethen 34170 15/32" Model X Expansion Reamer

1/2" ID x 1/2" BSPP

Brush Research 90AY2000180SC 90-Ay 2" 180sc

due to the baffle inside the valve cover

Dot style disc brushes are used for general purpose edge deburring and surface finishing applications

Drill America DWDCO9/16 9/16" Reduced Shank Cobalt Drill Bit, 1/2" Shank, Qualtech Shop By Vehicle>Chevrolet Chadwick & Trefethen 34170 15/32"Drill America DWDCO9 16 9 16" Reduced Shank Cobalt Drill Bit, 1 2" Shank, Qualtech Cobalt reduced shank drills are heavy Duty 135 Split Point, Cobalt Steel, Jobber Length, manufactured to National Aerospace standard 907. These drill bits display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel, and are especially effective in drilling tough, high tensile strength materials like stainless steel, inconel,