Page 2 of Drills, Reamers and Drill/Countersink Cutters by Cooper Power Tools

cutters a1-1-n f1-1-u b5-1-q c4-1-v c3-1-m e1-1-r d2-2-t example b7 cutter mounting style 1 oil hole t type of cutter 1 cutter material 2 specification source cutter mounting style see page 3 for details a1 straight round shank for gripping in chuck b1 b2 b3 b4 b5 b6 b7 b8 1/4 28 5/16 24 3/8 24 7/16 20 9/16 18 5/8 18 m6 x 100 m10 x 100 external external external external external external external external thread thread thread thread thread thread thread thread with with with with with with with with 120° 120° 120° 120° 120° 120° 120° 120° taper taper taper taper taper taper taper taper specification source 1 ­ customer drawing with complete specifications 2 ­ cutter design by recoules application information provided by customer see page 5 for details c1 m6 x 100 c2 m8 x 100 c3 m10 x 100 c4 m12 x 100 c5 m16 x 100 d1 5/16-24 d2 3/8-24 e1 1/4-28 e4 3/8-16 f1 1/4-28 f4 3/8-16 h2 through h7 external thread at rear with pilot diameter and square face standard wrench flat external thread at rear with pilot diameter and square face standard wrench flat external thread at rear with pilot diameter and square face standard wrench flat external thread at rear with pilot diameter and square face standard wrench flat external thread at rear with pilot diameter and square face standard wrench flat pilot diameter at rear external thread 60° taper pet pilot diameter at rear external thread 60° taper pet internal thread with 60° spacematic internal taper counterbore spacematic e style cutters with stepped rear diameter e style cutters with stepped rear diameter similar to c style except wrench flats accept telescoping wrench cutter material 1 ­ m42 high speed steel 2 ­ micrograin carbide type of cutter see page 4 for details m drill only 2 flute n ream only pre-hole required p drill reamer 2/4 style q square drill gun drill r drill countersink t short drill ream countersink u ream countersink pre-hole required v taperlock ream c sink pre-hole req d s points are not available solid or oil-hole 1 ­ solid 2 ­ oil hole for through-the-cutter lubrication the following mounting styles are not available from coopertools morse taper fluid chuck nutplate

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