6Pc Micro HSS Burr Set. Made From HSS (High Speed Steel). Can Be Used With Engraving Machine Or Mini Drill. Shank: 3.17mm (1/8"). KW1-KW17, PA20-PA38, PA41-PA49, PA60-PA78, PH4-PH44, PH49-PH50, PO (Isle Of Wight) TR (Isles Of Scilly) ZE (Channel Isles).
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