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CYLINDER HEAD PORTING STRAIGHT CARTRIDGE ROLLS 3/8 40 GRIT BOX (50)

$85.00

Straight cartridge rolls for porting are bonded abrasive tools, often aluminum oxide, used with a mandrel in a drill for modifying and smoothing internal engine passages (intake/exhaust ports) to improve airflow, available in various sizes (diameters/lengths) and grits (coarse to fine) for shaping and polishing cast iron or alloy heads, helping...

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Dresses Size Chart

Dress Size Chart (Inch)
DRESSES
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 34"-35"
S 2-4 33"-34" 26"-27" 36"-37"
M 6-8 35"-36" 28"-29" 38"-39"
L 10-12 37"-39" 30"-32" 40"-42"
XL 14 40"-42" 33"-35" 43"-45"
Dress Size Chart (cm)
DRESSES
SIZE IN CM
SIZE US / CAN BUST WAIST HIPS
XS 0 78.7-81.2 60.9-63.5 86.3-88.9
S 2-4 83.8-86.3 66-68.5 91.4-93.9
M 6-8 88.9-91.4 71.1-73.6 96.5-99
L 10-12 93.9-99 76.2-81.2 101.6-106.6
XL 14 101.6-106.6 81.2-88.9 109.2-114.3

Swimwear Size Chart

Dress Size Chart (Inch)
SWIMWEAR
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 33"-34"
S 2 33"-34" 26"-27" 35"-37"
M 4 35"-36" 28"-29" 37"-38"
L 6 37"-39" 30"-32" 39"-41"
XL 8 40"-42" 33"-35" 42"-44"

Shoes Size Chart

US EURO UK AUS JAPAN CHINA
5 35-36 3 3.5 21.5 35
5.5 36 3.5 4 22 35.5
6 36-37 4 4.5 22.5 36
6.5 37 4.5 5 23 36.5
7 37-38 5 5.5 23.5 37
7.5 38 5.5 6 24 37.5
8 38-39 6 6.5 24.5 38
8.5 39 6.5 7 25 38.5
9 39-40 7 7.5 25.5 39
9.5 40 7.5 8 26 39.5
10 40-41 8 8.5 26.5 40
11 41-42 9 9.5 27.5 41

Delivery

    All orders shipped with UPS Express.

    Always free shipping for orders over US $250.

    All orders are shipped with a UPS tracking number.

Returns

    Items returned within 14 days of their original shipment date in same as new condition will be eligible for a full refund or store credit.

    Refunds will be charged back to the original form of payment used for purchase.

    Customer is responsible for shipping charges when making returns and shipping/handling fees of original purchase is non-refundable.

    All sale items are final purchases.

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Straight cartridge rolls for porting are bonded abrasive tools, often aluminum oxide, used with a mandrel in a drill for modifying and smoothing internal engine passages (intake/exhaust ports) to improve airflow, available in various sizes (diameters/lengths) and grits (coarse to fine) for shaping and polishing cast iron or alloy heads, helping performance. They work by continually exposing new abrasive layers as they wear, ideal for hard-to-reach areas in cylinder heads and manifolds. 

Key Aspects of Straight Cartridge Rolls for Porting:
  • Purpose: To remove material from cylinder heads, intake manifolds, and exhaust ports to smooth surfaces, improve airflow (volumetric efficiency), and increase engine performance, throttle response, and horsepower.
  • Material: Typically made from durable aluminum oxide abrasive cloth on a cotton backing.
  • Types: Available as straight or tapered, though straight ones are common for general porting.
  • Grits: Range from coarse (e.g., 40, 80 grit) for material removal and shaping to fine (e.g., 120, 240 grit) for smoothing and polishing.
  • Sizes: Come in various diameters (e.g., 1/4", 3/8", 1/2") and lengths, often sold in kits with mandrels.
  • Usage: Mounted on a mandrel (a shaft that fits into a drill), these rolls are used to grind and blend metal in confined spaces, consistent cutting action as layers wear down. 

BASED IN MELBOURNE SHIPS AUSTRALIA WIDE

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