Burr-Off ®

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The original “Clothes Pin” tool

Cogsdill originated the “Clothes Pin” tool over half a century ago. Often copied but never beaten, Burr-Off is one of the most efficient and economical hole de-burring tools ever made for mass production.

The Burr-Off ® is a simple one-piece construction. Delivering super efficient hole deburring in a wide range of sizes. The Burr-Off operates on the same basic principle as the Burraway ®, but is designed for high-production, automated deburring operations – and primarily for ferrous materials. The open-slot design of the “clothes pin” tool allows chips to clear easily, which makes the tool ideal for automatic equipment and multi-spindle machines. Just like the Burraway, the Burr-Off deburrs the front, back, or both sides of holes in one fast pass.

Ideal for where access is restricted, Burr-Off tools are perfect for interrupted or interference cuts, holes close to shoulders, bosses, back folded sections, multi-layer or multi-sectional parts – pipes, tubes, liners housings, flanges – whether cast, stamped, extruded or machined.

Burr-Off tools CP-04 through -13 are for hole sizes from .062 inch (1.57mm) through .219 inch (5.56mm)and have a single cutting edge. Larger tools feature two cutting edges.

How Burr-Off tools work:

1 Integral cutting edges remove the burr from the front of the hole as the tool enters the hole.
2 The slotted design allows the tool to “collapse” under load as the tool feeds through the workpiece. The crowned and polished top surface of the cutting edges will not mar the inside surface of the hole.
3 The back of the hole is deburred on the return stroke.
BurrOff Deburing Tool
BurrOff CP04 Deburing Tool

High volume. No adjustment.

For mass production hole de-burring with no tool adjustment necessary.

Burr-Off video highlights:

To see the full range of Cogsdill videos please visit YouTube

Cogsdill Deburring tools

Burroff deburring & SRMR internal roller burnishing tools

Burr-Off Catalogue

We always hold a full range of sizes in stock.
Available for immediate shipping!

burr-off deburring tool original clothes pin tool

A variety of tool designs to meet your needs

Standard Burr-Off tools are available for both inch and metric hole sizes. Standard drill sizes are available from stock. The integral cutting edges can be altered upon request for front or back-cutting only.

Custom tools – larger sizes, altered standards, or special designs – can also be supplied to suit your particular requirements. Please furnish a part print and request a quotation.

Or enquire about our trial and evaluation service: Let us show you how Cogsdill’s Burr-Off tool can help you produce better-quality parts, with faster production, and at a lower cost!

Standard Tool Specifications

Tool Number Range of Hole Sizes Shank Diameter Overall Length Dimension A Dimension B
in. mm in. mm in. mm in. mm in. mm
CP-04 .062-.078 1.57-1.98 0.061 1.55 3.00 76.2 0.08 2.11 0.22 5.56
CP-05 .078-.094 1.98-2.39 0.077 1.96 3.00 76.2 0.08 2.11 0.22 5.56
CP-06 .093-.109 2.36-2.77 0.092 2.34 4.00 101.6 0.09 2.36 0.25 6.35
CP-07 .109-.125 2.77-3.17 0.108 2.74 4.00 101.6 0.09 2.36 0.25 6.35
CP-08 .125-.140 3.17-3.55 0.124 3.14 4.00 101.6 0.13 3.30 0.30 7.62
CP-09 .140-.156 3.55-3.96 0.139 3.53 4.00 101.6 0.13 3.30 0.30 7.62
CP-10 .156-.172 3.96-4.36 0.155 3.93 4.00 101.6 0.13 3.30 0.30 7.62
CP-11 .172-.187 4.36-4.74 0.171 4.34 4.00 101.6 0.13 3.30 0.30 7.62
CP-12 .187-.203 4.74-5.15 0.186 4.72 4.00 101.6 0.13 3.30 0.37 9.39
CP-13 .203-.219 5.15-5.56 0.202 5.13 4.00 101.6 0.13 3.30 0.37 9.39
CP-14 .219-.234 5.56-5.94 0.218 5.53 4.00 101.6 0.25 6.35 0.50 12.70
CP-15 .234-.250 5.94-6.35 0.233 5.91 4.00 101.6 0.25 6.35 0.50 12.70
CP-16 .250-.266 6.35-6.75 0.249 6.32 4.00 101.6 0.25 6.35 0.50 12.70
CP-17 .266-.281 6.75-7.13 0.265 6.73 4.00 101.6 0.25 6.35 0.50 12.70
CP-18 .281-.297 7.13-7.54 0.280 7.11 4.00 101.6 0.25 6.35 0.50 12.70
CP-19 .297-.313 7.54-7.95 0.296 7.51 4.00 101.6 0.29 7.36 0.54 13.71
CP-20 .313-.328 7.95-8.33 0.312 7.92 4.00 101.6 0.29 7.36 0.54 13.71
CP-21 .328-.343 8.33-8.71 0.327 8.30 4.00 101.6 0.29 7.36 0.54 13.71
CP-22 .343-.359 8.71-9.11 0.342 8.68 4.00 101.6 0.29 7.36 0.54 13.71
CP-23 .359-.375 9.11-9.52 0.358 9.09 4.00 101.6 0.29 7.36 0.54 13.71
CP-24 .375-.390 9.52-9.9 0.374 9.49 4.43 112.5 0.32 8.12 0.55 13.97
CP-25 .390-.406 9.9-10.31 0.389 9.88 4.43 112.5 0.32 8.12 0.55 13.97
CP-26 .406-.422 10.31-10.71 0.405 10.28 4.43 112.5 0.32 8.12 0.55 13.97
CP-27 .422-.437 10.71-11.09 0.420 10.66 4.43 112.5 0.32 8.12 0.55 13.97
CP-28 .437-.453 11.09-11.5 0.436 11.07 5.50 139.7 0.35 8.89 0.62 15.74
CP-29 .453-.468 11.5-11.88 0.452 11.48 5.50 139.7 0.35 8.89 0.62 15.74
CP-30 .468-.484 11.88-12.29 0.467 11.86 5.50 139.7 0.35 8.89 0.62 15.74
CP-31 .484-.500 12.29-12.7 0.483 12.26 5.50 139.7 0.35 8.89 0.62 15.74
CP-32 .500-.515 12.7-13.08 0.499 12.67 7.00 177.8 0.38 9.65 0.68 17.27
CP-33 .515-.531 13.08-13.48 0.514 13.05 7.00 177.8 0.38 9.65 0.68 17.27
CP-34 .531-.547 13.48-13.89 0.530 13.46 7.00 177.8 0.38 9.65 0.68 17.27
CP-35 .547-.563 13.89-14.3 0.545 13.84 7.00 177.8 0.38 9.65 0.68 17.27
CP-36 .563-.578 14.3-14.68 0.562 14.27 7.50 190.5 0.42 10.66 0.82 20.82
CP-37 .578-.594 14.68-15.08 0.577 14.65 7.50 190.5 0.42 10.66 0.82 20.82
CP-38 .594-.609 15.08-15.46 0.593 15.06 7.50 190.5 0.42 10.66 0.81 20.57
CP-39 .609-.625 15.46-15.87 0.608 15.44 7.50 190.5 0.42 10.66 0.81 20.57
CP-40 .625-.641 15.87-16.28 0.624 15.84 7.50 190.5 0.45 11.43 0.88 22.35


Tools for larger hole sizes up to 1.000 inch (25.4mm) are available; request quotation.

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