Taper Pin Reamers
Taper pin reamers create the precise tapered bore needed for standard taper pin fits, commonly used to secure gears, pulleys, and other components to shafts. We stock HSS Taper Pin Reamers in Straight Flute, LH Spiral, and LH Helical configurations to match different chip evacuation needs and hole conditions.
Left-hand spiral and helical flute designs are often preferred for through-holes and deeper tapers since they help pull chips out ahead of the cutting edge, reducing binding. All taper pin reamers are USA manufactured to standard taper pin sizing and stocked for same-day shipping.
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Size (D1) Decimal Equivalent (D1) Flute Diameter (D1) Shank Diameter (D2) Pilot Length (L2) Pilot Diameter (D3) Flute Length (L2) Overall Length (L1) Total Reach (L3) Axial Chamfer Morse Taper Small Diameter Large Diameter Body Length (L3) Size of Square Hex Shank Diameter Number of Flutes Coating In Stock Sku Price Quantity #7/0 0.0666 5/64 13/16 1-13/16 0.0497 0.0666 4 Uncoated 8 $40.66 -
#7/0 0.0666 5/64 13/16 1-13/16 0.0497 0.0666 4 Uncoated 35 $49.98 -
#7/0 0.0666 5/64 13/16 1-13/16 0.0497 0.0666 4 Uncoated 5 $53.81 -
#6/0 0.0806 3/32 15/16 1-15/16 0.0611 0.0806 4 Uncoated Call $40.41 -
#6/0 0.0806 3/32 15/16 1-15/16 0.0611 0.0806 4 Uncoated Call $34.02 -
#6/0 0.0806 3/32 15/16 1-15/16 0.0611 0.0806 4 Uncoated 23 $53.81 -
#5/0 0.0966 7/64 1-3/16 2-3/16 0.0719 0.0966 4 Uncoated 4 $41.29 -
#5/0 0.0966 7/64 1-3/16 2-3/16 0.0719 0.0966 4 Uncoated 11 $37.43 -
#5/0 0.0966 7/64 1-3/16 2-3/16 0.0719 0.0966 4 Uncoated 9 $49.11 -
#4/0 0.1142 1/8 1-5/16 2-5/16 0.0869 0.1142 4 Uncoated 3 $41.29 -
#4/0 0.1142 1/8 1-5/16 2-5/16 0.0869 0.1142 4 Uncoated 12 $48.86 -
#4/0 0.1142 1/8 1-5/16 2-5/16 0.0869 0.1142 4 Uncoated 12 $49.11 -
#3/0 0.1302 9/64 1-5/16 2-5/16 0.1029 0.1302 4 Uncoated 7 $53.81 -
#3/0 0.1302 9/64 1-5/16 2-5/16 0.1029 0.1302 4 Uncoated 21 $44.33 -
#3/0 0.1302 9/64 1-5/16 2-5/16 0.1029 0.1302 4 Uncoated 13 $49.11 -
#2/0 0.1462 5/32 1-9/16 2-9/16 0.1137 0.1462 4 Uncoated 1 $34.27 -
#2/0 0.1462 5/32 1-9/16 2-9/16 0.1137 0.1462 4 Uncoated 12 $44.82 -
#2/0 0.1462 5/32 1-9/16 2-9/16 0.1137 0.1462 4 Uncoated 11 $43.91 -
#0 0.1638 11/64 1-11/16 2-15/16 0.1287 0.1638 4 Uncoated 15 $32.54 -
#0 0.1638 11/64 1-11/16 2-15/16 0.1287 0.1638 4 Uncoated 4 $32.95 -
#0 0.1638 11/64 1-11/16 2-15/16 0.1287 0.1638 4 Uncoated 11 $42.43 -
#1 0.1798 3/16 1-11/16 2-15/16 0.1447 0.1798 6 Uncoated 5 $32.95 -
#1 0.1798 3/16 1-11/16 2-15/16 0.1447 0.1798 6 Uncoated 12 $33.57 -
#1 0.1798 3/16 1-11/16 2-15/16 0.1447 0.1798 6 Uncoated 10 $29.61 -
#2 0.2008 13/64 1-15/16 3-3/16 0.1605 0.2008 6 Uncoated 17 $45.73 -
#2 0.2008 13/64 1-15/16 3-3/16 0.1605 0.2008 6 Uncoated Call $40.21 -
#2 0.2008 13/64 1-15/16 3-3/16 0.1605 0.2008 6 Uncoated 19 $40.91 -
#3 0.2294 15/64 2-15/16 3-11/16 0.1813 0.2294 6 Uncoated 11 $45.73 -
#3 0.2294 15/64 2-15/16 3-11/16 0.1813 0.2294 6 Uncoated Call $41.58 -
#3 0.2294 15/64 2-15/16 3-11/16 0.1813 0.2294 6 Uncoated 16 $40.91 -
#4 0.2604 17/64 2-9/16 4-1/16 0.2071 0.2604 6 Uncoated 60 $50.02 -
#4 0.2604 17/64 2-9/16 4-1/16 0.2071 0.2604 6 Uncoated 9 $61.15 -
#4 0.2604 17/64 2-9/16 4-1/16 0.2071 0.2604 6 Uncoated 16 $45.85 -
#5 0.2994 5/16 2-13/16 4-5/16 0.2409 0.2994 6 Uncoated 19 $53.11 -
#5 0.2994 5/16 2-13/16 4-5/16 0.2409 0.2994 6 Uncoated 2 $48.29 -
#5 0.2994 5/16 2-13/16 4-5/16 0.2409 0.2994 6 Uncoated 36 $49.36 -
#6 0.3540 23/64 3-11/16 5-7/16 0.2773 0.354 6 Uncoated 16 $65.73 -
#6 0.3540 23/64 3-11/16 5-7/16 0.2773 0.354 6 Uncoated Call $78.42 -
#6 0.3540 23/64 3-11/16 5-7/16 0.2773 0.354 6 Uncoated 21 $59.50 -
#7 0.4220 13/32 4-7/16 6-5/16 0.3297 0.422 6 Uncoated 13 $82.84 -
#7 0.4220 13/32 4-7/16 6-5/16 0.3297 0.422 6 Uncoated 13 $96.81 -
#7 0.4220 13/32 4-7/16 6-5/16 0.3297 0.422 6 Uncoated 23 $76.32 -
#8 0.5050 7/16 5-3/16 7-3/16 0.3971 0.505 6 Uncoated 16 $108.23 -
#8 0.5050 7/16 5-3/16 7-3/16 0.3971 0.505 6 Uncoated 10 $113.59 -
#8 0.5050 7/16 5-3/16 7-3/16 0.3971 0.505 6 Uncoated 14 $99.00 -
#9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 14 $129.10 -
#9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 5 $124.85 -
#9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 15 $119.28 -
#10 0.7216 5/8 6-13/16 9-5/16 0.5799 0.7216 6 Uncoated 13 $143.20 -
#10 0.7216 5/8 6-13/16 9-5/16 0.5799 0.7216 6 Uncoated Call $114.79 -
#10 0.7216 5/8 6-13/16 9-5/16 0.5799 0.7216 6 Uncoated 19 $130.91 -
#11 0.8780 3/4 8-1/4 11-1/4 0.706 0.878 8 Uncoated 11 $152.76 -
#11 0.8780 3/4 8-1/4 11-1/4 0.706 0.878 8 Uncoated 5 $127.16 -
#11 0.8780 3/4 8-1/4 11-1/4 0.706 0.878 8 Uncoated 9 $138.74 -
#12 1.0500 3/4 10 13-7/8 0.842 1.05 8 Uncoated 8 $171.23 -
#12 1.0500 3/4 10 13-7/8 0.842 1.05 8 Uncoated 6 $188.30 -
#12 1.0500 3/4 10 13-7/8 0.842 1.05 8 Uncoated 6 $215.84 -
#13 1.2590 1-1/16 12 16 1.009 1.259 10 Uncoated 11 $460.54 -
#13 1.2590 1-1/16 12 16 1.009 1.259 10 Uncoated 2 $545.71 -
#13 1.2590 1-1/16 12 16 1.009 1.259 10 Uncoated 1 $301.89 -
#14 1.5420 1-13/32 14 18-1/4 1.25 1.542 10 Uncoated 16 $744.50 -
#14 1.5420 1-13/32 14 18-1/4 1.25 1.542 10 Uncoated 3 $813.47 -
#14 1.5420 1-13/32 14 1.25 1.542 10 Uncoated 22 $483.72