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Aircraft Deburring & Finishing Tools – CRATEX Abrasives

This article is part of Introduction: The Ultimate Deburring Tool - CRATEX Abrasives series.
For full article click here

Aircraft Deburring & Finishing Tools

 
In the lack of a perfect tool for rib edge and holes finishing, a lot of aircraft enthusiasts and RV owners had to improvise (see this tread). They had to cut 1-inch Scotch-Brite wheels into quarters to create abrasives shaped as cones, so that they could use them with their Dremel. Result? Not so good. First, you'd need to spent time cutting and shaping the wheel, but most importantly, you'd use the new tool on about two or three ribs. After that, the “cone” will fall apart.

CRATEX: True Scotch- Brite Alternative

The good news is, that with CRATEX, you won't need to improvise anymore! Two types of abrasives are used for deburring and polishing of aircraft parts: rubber-bond silicon carbide abrasives (cutting or putting and edge break on parts; best suitable for aluminum) and laminate-bond brown aluminum oxide MX abrasives (blending in tooling marks and removing smeared material; best suitable for stainless steel and titanium).

The rubber-bonded abrasives come all different shapes and size, but the shapes used the most for kit plane deburring and polishing operations are: points, cones and small wheels. They are all made in four standard grit textures (coarse, medium, fine and extra fine) and two bonds: standard (cuts smoothly, freely and softly and has a unique cushioned action) and hard bond (removes burrs on hard metals but can also be used for light grinding operations).

CRATEX rubber abrasives grits

All CRATEX abrasive bits can be mounted on conventional portable motor tools, such as Dremel to provide amazing results – precise and quick deburring and material removal. Suitable mandrels for the wheels, points and cones come in the packs of 10 and can also be ordered through our website.

CRATEX Mounted Points

CRATEX research and development team joined forces with industry experts to create rubber abrasive points in several dimensions and grit sizes. As a result, you now have a perfect weapon for:

  • rib edge finishing,
  • finishing rib tight angles,
  • deburring nooks and crannies,
  • hole deburring,
  • deburring inside notches in flanges,
  • deburring edges in lightening holes and much more.

CRATEX points are made in three shapes: bullet point, cylinder and tapered. They are available in boxes of 100 pieces or in combination with other CRATEX bits as the part of the CRATEX kits. Check out available diameters and arbor holes below!

CRATEX Mounted Points Banner

Order Points

SKU Shape Length Diameter Arbor Hole
Q8 Bullet Point 1" 9/32" 1/16"
Q10 Bullet Point 5/8" 3/8" 1/16"
Q11 Bullet Point 1" 3/8" 1/8"
Q15 Bullet Point 7/8" 1/2" 1/8"
Q4 Cylinder 1/2" 1/4" 1/16"
Q6 Cylinder 7/8" 1/4" 1/16"
Q12 Tapered 7/8" 3/8" to 5/16" 1/8"
Q14 Tapered 7/8" 5/8" to 1/8" 1/8"
SKU Price Quantity
sku $price
Quantity Price per piece

CRATEX Mounted Cones

@aeropro_welding

I used to use these to polish the edges of turbine parts to prevent cracks from forming, they worked great and gave a top notch finish. After each hydro form stage we would polish the edges of the parts with the CRATEX cones to keep them cracking on the next stage.

CRATEX cones are the perfect tools for difficult deburring, smoothing and polishing operations and easily reaching normally hard-to-reach work areas. One of the beneficial characteristics of CRATEX cones is that they can be shaped quite easily, either while being used or by using the CRATEX dressing stick.

CRATEX cones are available in four shapes: bullet point, cylinder, pointed and tapered. They are available for individual purchaser or in combination with other abrasive bits included in one of the various available CRATEX kits.

CRATEX Mounted Cones Banner

Order Cones

SKU Shape Length Diameter Arbor Hole
Q4707 Bullet Point 1"-3/4" 7/8" 1/4"
Q1350 Cylinder 1" 7/8" 1/4"
Q1351 Cylinder 1"-1/2" 1" 1/4"
Q1357 Pointed 1"-1/4" 7/8" 1/4"
Q1358 Pointed 1"-3/4" 1" 1/4"
Q1340 Tapered 1" 5/8" to 1/4" 1/4"
Q1345 Tapered 1"-1/4" 7/8" to 1/4" 1/4"
Q1349 Tapered 1"-1/4" 1" to 1/4" 1/4"
Q1848 Tapered 2" 1" to 1/2" 1/4"
SKU Price Quantity
sku $price
Quantity Price per piece

CRATEX Small Mounted Wheels

CRATEX small wheels come with two types of edges: tapered and straight edge. While the shaped edge is more suitable for fine work on small delicate parts, straight edge wheels are more suitable for a broad range of deburring, smoothing and polishing operations. They are perfect tools for all operations that require absolute control of metal removal, such as micro-deburring, polishing away fatigue lines and scratches, and relieving stress concentration areas.

The small rubber wheels can be purchased in boxes of 100 pieces or in combination with other abrasive bits included in one of the various available CRATEX kits. The available diameters range from 3/8", 5/8", 7/8" to 1". Learn more about the available arbor hole and thickness below!

CRATEX Small Mounted Wheels Banner

Order Small Wheels

SKU Diameter Thickness Arbor Hole Edge
Q1 3/8" 3/32" 1/16" Tapered
Q53 5/8" 3/32" 1/16" Straight
Q54 5/8" 1/8" 1/16" Straight
Q59 5/8" 1/4" 1/16" Straight
Q74 7/8" 1/8" 1/16" Straight
Q80 1" 1/8" 1/16" Straight
Q80-2 1" 1/8" 1/8" Straight
Q86 1" 3/16" 1/16" Straight
Q88 1" 1/4" 1/16" Straight
Q88-2 1" 1/4" 1/8" Straight
Q2 5/8" 3/32" 1/16" Tapered
Q5 1" 1/8" 1/16" Tapered
SKU Price Quantity
sku $price
Quantity Price per piece

CRATEX MX Abrasives

If you find that your wings need advance deburring, you can use MX abrasives. Rubber impregnated abrasives wear off faster when they are used on ticker metal surfaces. MX wheels and cones can be a perfect fit when working with harder metals, such as stainless steel and titanium. They easily remove smeared material and blend mismatch.

CRATEX MX Abrasives bonds, grit sizes and applications

MX abrasives are made of brown aluminum oxide and they come in two bonds: latex and resin bond. They also come in 8 grit sizes, and can be purchased as individual unmounted wheels, mounted bits, or as a box of 24 mounted pieces

MX Unmounted Wheels banner

Order Unmounted MX Wheels

SKU Diameter Thickness Arbor Hole Grits Bond
Q40065 2" 1/4" 1/4" A54 CXH
Q40199 2" 1/8" 1/4" A80 CXHR
Q40272 1" 1/8" 1/8" A80 CXHR
Q40294 1" 1/8" 1/8" A54 CXHR
Q40583 6" 1/2" 1/2" A80A CXHR
Q40676 6" 1/2" 1/2" A36 CXHR
Q40914 1-1/2" 1/4" 1/4" A54 CXH
SKU Price Quantity
sku $price
Quantity Price per piece

Large Grinding Wheels

For large flat wing surface, you can always use CRATEX large wheels for bench and hand grinders. 3-inch wheels are ideal for finishing and soothing wings of most RV kit planes.

CRATEX Kits

Aircraft enthusiasts and professionals across US started using CRATEX 777  and 767 KITS as Scotch-Brite alternative. Kit 767 contains 40 points (cylinder, bullet-point and tapered) in 4 grit textures: coarse (green), medium (dark brown), fine (reddish brown) and extra fine (grey green) and 4 mandrels.

Kit 777 contains 80 wheels and points assorted in standard CRATEX grit textures plus 4 mandrels for easy mounting on Dremel or CRATEX handpiece.