OD is 3/4", fit in a 5/8" hole with a 1/4-3/8" center hole. Came from a SRM 2301. It is malleable and usable in near size holes. THanks Echo PE-2400 (001001-008000) Edger PE-3100 (Type 1E) (After S/N 001001) Edger SRM-3100 (Type 2E) (After S/N 001001) Straight Shaft Trimmer SRM-3110 (Type 2E) (After S/N 001001) Straight Shaft Trimmer GT-1100 (077001 - 098000) Curved Shaft Grass Trimmer GT-1100B (174349 - 181000) Curved Shaft Grass Trimmer GT-1100 (098001 - 126000) Curved Shaft Grass Trimmer GT-1100 (126001 - 174348) Curved Shaft Grass Trimmer GT-1100 (181001 - 252599) Curved Shaft Grass Trimmer GT-1100 (After S/N 252600) Curved Shaft Grass Trimmer GT-200 (S85013001001- S85013999999) Curved Shaft Grass Trimmer GT-2000 (001001 - 151954) Curved Shaft Grass Trimmer GT-2000 (After S/N 151955) Curved Shaft Grass Trimmer GT-2000 (Type 1E) (001001 - 229418) Curved Shaft Grass Trimmer GT-2000 (Type 1E) (After S/N 229419) Curved Shaft Grass Trimmer GT-2000SB (Type 1E) (After S/N 501001) Curved Shaft Grass Trimmer GT-2000EZR Curved Shaft Grass Trimmer GT-2000R (Type 1E) Curved Shaft Grass Trimmer GT-2000SB (Type 1) (001001 - 007393) Curved Shaft Grass Trimmer GT-2000SB (Type 1) (After S/N 007394) Curved Shaft Grass Trimmer GT-200EZR (05001001- 05999999) Curved Shaft Grass Trimmer GT-2000SB (Type 1E) (001001 - 501000) Curved Shaft Grass Trimmer GT-200EZR (07001001- 07999999) Curved Shaft Grass Trimmer GT-200I (07003498 - 07004336) Curved Shaft Grass Trimmer GT-200I (05001001 - 05026559) Curved Shaft Grass Trimmer GT-200I (07004337 - 07999999) Curved Shaft Grass Trimmer GT-200I (05026560 - 05030474) Curved Shaft Grass Trimmer GT-200I (08001001 - 08010265) Curved Shaft Grass Trimmer GT-200I (05030475 - 05999999) Curved Shaft Grass Trimmer GT-200I (08010266 - 08999999) Curved Shaft Grass Trimmer GT-200I (10002689 - 10999999) Curved Shaft Grass Trimmer GT-200I (07001001 - 07003497) Curved Shaft Grass Trimmer GT-200I (10001001 - 10002688) Curved Shaft Grass Trimmer GT-200I (S65211001001 - S65211999999) Curved Shaft Grass Trimmer GT-200I (S72712001001 - S72712999999) Curved Shaft Grass Trimmer GT-200I (S80213001001 - S80213999999) Curved Shaft Grass Trimmer GT-200R (07003017 - 07003100) Curved Shaft Grass Trimmer GT-200R (05001001 - 05084365) Curved Shaft Grass Trimmer GT-200R (07003101 - 07999999) Curved Shaft Grass Trimmer GT-200R (05084366 - 05147267) Curved Shaft Grass Trimmer GT-200R (08001001 - 08043307) Curved Shaft Grass Trimmer GT-200R (10002730 - 10999999) Curved Shaft Grass Trimmer GT-201EZR (02001001 - 02999999) Curved Shaft Grass Trimmer GT-200R (05147268 - 05999999) Curved Shaft Grass Trimmer GT-200R (08143308 - 08999999) Curved Shaft Grass Trimmer GT-201EZR (06001001 - 06999999) Curved Shaft Grass Trimmer GT-200R (S65111001001 - S65111999999) Curved Shaft Grass Trimmer GT-200R (07001001 - 07003016) Curved Shaft Grass Trimmer GT-200R (10001001 - 10002729) Curved Shaft Grass Trimmer GT-201I (06001001 - 06001644) Curved Shaft Grass Trimmer GT-200R (S72612001001 - S72612999999) Curved Shaft Grass Trimmer GT-201I (06001645 - 06001842) Curved Shaft Grass Trimmer GT-200R (S80113001001 - S80113999999) Curved Shaft Grass Trimmer GT-201I (06001843 - 06999999) Curved Shaft Grass Trimmer GT-201 (02001001 - 02999999) Curved Shaft Grass Trimmer GT-201I (09001001 - 09001280) Curved Shaft Grass Trimmer GT-201R (06013439 - 06999999) Curved Shaft Grass Trimmer GT-201I (09001281 - 09999999) Curved Shaft Grass Trimmer GT-201R (09001001 - 09006616) Curved Shaft Grass Trimmer GT-201R (02001001- 02999999) Curved Shaft Grass Trimmer GT-201R (09006617 - 09999999) Curved Shaft Grass Trimmer GT-201R (06001001 - 06011782) Curved Shaft Grass Trimmer GT-201R (06011783 - 06013438) Curved Shaft Grass Trimmer GT-2102 (001001 - 051000) Curved Shaft Grass Trimmer GT-2102 (After S/N 051001) Curved Shaft Grass Trimmer GT-2103 (001001 - 031001) Curved Shaft Grass Trimmer GT-2103 (After S/N 031001) Curved Shaft Grass Trimmer GT-2400 (001001 - 103574) Curved Shaft Grass Trimmer GT-2400 (After S/N 103575) Curved Shaft Grass Trimmer SRM-1501 (0017001 - 0039000) Straight Shaft Trimmer / Brushcutter SRM-1501 (0039001 - 0083386) Straight Shaft Trimmer / Brushcutter SRM-1501 (0083387 - 0135000) Straight Shaft Trimmer / Brushcutter SRM-2301 (001001 - 0031000) Straight Shaft Trimmer / Brushcutter SRM-2301 (After S/N 0031001) Straight Shaft Trimmer / Brushcutter PP-1200 (001001-055504) Power Pruner PP-1200 (055505-501000) Power Pruner PP-1200 (Type 1E) Power Pruner PP-1250 (001001-007863) Power Pruner PP-1250 (Type 1E) (After S/N 07864) Power Pruner PP-1260 (After S/N 001001) Power Pruner PP-1400 (001001-007863) Power Pruner PP-1400 (Type 1E) (After S/N 007864) Power Pruner PP-800 (001001-055504) Power Pruner PP-800 (After S/N 001001) Power Pruner PP-800 (055505-501000) Power Pruner PP-800 (Type 1E) (001001-055504) Power Pruner PP-800 (Type 1E) (After S/N 001001) Power Pruner PP-800 (Type 1E) (055505-501000) Power Pruner PPF-210 (05001001-05010614) Power Pruner Fixed Shaft PPF-210 (05010615-05999999) Power Pruner Fixed Shaft PPF-210 (07001001-07999999) Power Pruner Fixed Shaft PPF-210 (08001001-08999999) Power Pruner Fixed Shaft PPF-210 (09001001-09002776) Power Pruner Fixed Shaft PPF-210 (09002767-09999999) Power Pruner Fixed Shaft PPF-210 (10001121-10999999) Power Pruner Fixed Shaft PPF-210 (10001001-10001120) Power Pruner Fixed Shaft PPF-210 (E07511001001-E07511999999) Power Pruner Fixed Shaft PPF-210 (E08112001001-E08112001703) Power Pruner Fixed Shaft PPF-210 (E08112001704-E08112999999) Power Pruner Fixed Shaft PPF-210 (E08713001001-E08713999999) Power Pruner Fixed Shaft PPF-2100 (Type 1E) (001001-506099) Power Pruner Fixed Shaft PPF-2100 (Type 1E) (506100-509499) Power Pruner Fixed Shaft PPF-2100 (Type 1E) (After S/N 509500) Power Pruner Fixed Shaft PPF-211 (02001001-02999999) Power Pruner Fixed Shaft PPF-211 (01001001-06001422) Power Pruner Fixed Shaft PPF-211 (06001423-06999999) Power Pruner Fixed Shaft PPF-211 (09001001-09001076) Power Pruner Fixed Shaft PPF-211 (09001077-09999999) Power Pruner Fixed Shaft PPF-2110 (Type 1E) (001001-506099) Power Pruner Fixed Shaft PPF-2110 (Type 1E) (After S/N 501890) Power Pruner Fixed Shaft PPT-2400 (Type 1E) (001001-505899) Power Pruner Telescoping Shaft PPT-2400 (Type 1E) (After S/N 505900) Power Pruner Telescoping Shaft WP-1000 (Type 1) (001001-001405) Water Pumps WP-1000 (Type 1) (010406-999999) Water Pumps WP-1000 (Type 1E) (501001-503211) Water Pumps WP-1000 (Type 1E) (01001-12477) Water Pumps WP-1000 (Type 1E) (503212-599999) Water Pumps WP-1000 (Type 1E) (12478-99999) Water Pumps PE-200 (07001033 - 07999999) Edger PE-200 (08001001 - 08999999) Edger PE-200 (05001001 - 05999999) Edger PE-201 (02001001 - 02999999) Edger PE-200 (S75512001001 - S75512999999) Edger PE-200 (09001001 - 09999999) Edger PE-200 (07001001 - 07001032) Edger PE-200 (S83013001001 - S83013999999) Edger PE-200 (10001001 - 10999999) Edger PE-2000 (Type 1) (After S/N 001001) Edger PE-200 (S68211001001 - S68211999999) Edger PE-2000 (Type 1E) (After S/N 001001) Edger PE-2000 (Type 2E) (After S/N 001001) Edger LST-2100 (001001-003000) TT-21 (001001-004000) TT-21 (After S/N 004001) TT-21A (001001-055504) TT-21A (After S/N 055505) TT-21A (Type 1E)(After S/N 001001) TT-24 (After S/N 001001) TT-24A (After S/N 001001) TT-24A (Type 1E)(After S/N 001001) TSI-21 (After S/N 001001) SHC-1700 (Type 1) (After S/N 001001) Shaft Hedge Clipper SHC-1700 (Type 1E) (501001 - 504767) Shaft Hedge Clipper SHC-1700 (Type 1E) (After S/N 504768) Shaft Hedge Clipper PPT-2100 (Type 1E) Power Pruner SRM-2310 Trimmer S/N:0031001-9999999 PLEASE LOOK AT PICTURES FOR DETAILS AND CONDITION. ASK ALL QUESTIONS PRIOR TO BIDDING. Everything we list is from our own stock. One owner, dry, smoke pet free; well cared for. Check our related items. We have many items and will combine shipping. If you need something you don't see, please contact us with your needs. We ship FAST and reasonably.All sales final, no returns. Payment must be received in 24 HOURS. PLEASE Leave Positive feedback and we'll do the same IMMEDIATELY AFTER RECEIVING FEEDBACK. PLEASE CONTACT US IF THERE'S A PROBLEM, WE WILL RESOLVE ISSUES. USA shipping to a confirmed address Only. ZERO FEEDBACK BIDDERS MUST CONTACT US OR THE BID WILL BE CANCELED. MOST ITEMS ARE FOR SALE LOCALLY AND WE RESERVE THE RIGHT TO END AUCTIONS WITH NO BIDS. PLEASE GET YOUR BID IN EARLY. Thanks for looking! Powered by Turbo Lister The free listing tool. List your items fast and easy and manage your active items. Check all our shipping options for the least expensive method. Feel free to make an offer , the worst that can happen is a counter offer! Add to cart for shipping quote on multiple quantities. US Seller! Very fast shipping!! All items are cleaned with disinfecting wipes where applicable. All items are handled and packed by 1 Covid free person. I have been fully quarantined since March 2020 and no one has entered our facility.