Reamers
Atlas Cutting Tools carries one of the most complete ranges of reamer sizes and styles in the industry, including over 5,000 HSS and Cobalt Chucking Reamers alone. Shop Chucking Reamers (straight flute and spiral flute, in HSS, Cobalt, and Carbide), Dowel Pin Reamers, Expansion Reamers, Hand Reamers, Taper Pin Reamers, and specialty items like Bridge Reamers, Capscrew Counterbores, Construction Reamers, Safety Reamers, and Taper Pipe Reamers.
Reamers are precision-ground for tight tolerance hole finishing after drilling or boring, and material choice matters: HSS suits general-purpose work, Cobalt holds up better in stainless and tougher alloys, and Carbide delivers the longest tool life in high-volume production. All reamers are USA manufactured, and most sizes ship the same day with a 97% fill rate.
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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 0.1485 0.143 1 4 4 Uncoated 19 $25.49 -
0.2110 0.2110 1 3 1-3/4 0.0250 4 Uncoated 3 $59.99 -
53/64 0.8281 0.624 2-1/2 9-1/2 8 Uncoated 11 $88.65 -
0.149 0.143 1 4 4 Uncoated 16 $25.65 -
0.2120 0.2120 1 3 1-3/4 0.0250 4 Uncoated 14 $59.99 -
27/32 0.8438 0.624 2-1/2 9-1/2 8 Uncoated 7 $95.16 -
0.15 0.146 1 4 4 Uncoated 39 $25.65 -
#3 0.2130 0.2130 1 3 1-3/4 0.0250 4 Uncoated 23 $56.08 -
21.5mm 0.8465 0.749 2-5/8 10 8 Uncoated 12 $103.49 -
0.1505 0.146 1 4 4 Uncoated 13 $25.49 -
0.2140 0.2140 1 3 1-3/4 0.0250 4 Uncoated 23 $59.99 -
55/64 0.8594 0.749 2-5/8 10 8 Uncoated 9 $103.49 -
0.151 0.146 1 4 4 Uncoated 24 $25.65 -
0.2150 0.2150 1 3 1-3/4 0.0250 4 Uncoated 16 $59.99 -
22.0mm 0.8661 0.749 2-5/8 10 8 Uncoated 9 $104.03 -
0.1515 0.146 1 4 4 Uncoated 11 $25.65 -
0.2160 0.2160 1 3 1-3/4 0.0250 4 Uncoated 15 $59.99 -
0.874 O/U 0.8740 0.749 2-5/8 10 8 Uncoated 13 $103.33 -
0.1525 0.146 1 4 4 Uncoated 16 $25.49 -
5.5mm 0.2165 5.500 1 3 44mm 0.0250 4 Uncoated 2 $63.54 -
7/8 0.8750 0.749 2-5/8 10 8 Uncoated 22 $97.14 -
0.153 0.146 1 4 4 Uncoated 13 $25.65 -
0.2170 0.2170 1 3 1-3/4 0.0250 4 Uncoated 13 $59.99 -
0.876 O/U 0.8760 0.749 2-5/8 10 8 Uncoated 11 $105.80 -
0.1535 0.146 1 4 4 Uncoated 20 $25.49 -
0.2180 0.2180 1 3 1-3/4 0.0250 4 Uncoated 12 $59.99 -
22.5mm 0.8858 0.749 2-5/8 10 8 Uncoated 10 $105.51 -
0.1545 0.151 1 4 4 Uncoated 6 $25.65 -
7/32 0.2188 0.2188 1 3 1-3/4 0.0250 4 Uncoated 19 $54.14 -
57/64 0.8906 0.749 2-5/8 10 8 Uncoated 17 $105.51 -
0.155 0.151 1 4 4 Uncoated 23 $25.65 -
0.2190 0.2190 1 3 1-3/4 0.0250 4 Uncoated 18 $59.99 -
23.0mm 0.9055 0.749 2-5/8 10 8 Uncoated 12 $105.51 -
0.1555 0.151 1 4 4 Uncoated 24 $25.65 -
0.2200 0.2200 1 3 1-3/4 0.0250 4 Uncoated 17 $59.99 -
29/32 0.9062 0.749 2-5/8 10 8 Uncoated 6 $105.14 -
0.156 0.151 1 4 4 Uncoated 32 $25.65 -
#2 0.2210 0.2210 1 3 1-3/4 0.0250 4 Uncoated 24 $56.08 -
59/64 0.9219 0.749 2-5/8 10 8 Uncoated 10 $113.18 -
0.1565 0.151 1 4 6 Uncoated 16 $26.76 -
0.2220 0.2220 1 3 1-3/4 0.0250 4 Uncoated 15 $59.99 -
23.5mm 0.9252 0.749 2-5/8 10 8 Uncoated 12 $113.18 -
0.158 0.153 1-1/8 4-1/2 6 Uncoated 39 $26.76 -
0.2230 0.2230 1 3 1-3/4 0.0250 4 Uncoated 14 $59.99 -
0.9365 O/U 0.9365 0.749 2-5/8 10 8 Uncoated 13 $113.06 -
0.1585 0.153 1-1/8 4-1/2 6 Uncoated 43 $26.76 -
0.2240 0.2240 1 3 1-3/4 0.0250 4 Uncoated 19 $59.99 -
15/16 0.9375 0.749 2-5/8 10 8 Uncoated 17 $104.98 -
0.1595 0.153 1-1/8 4-1/2 6 Uncoated 22 $26.76 -
0.2250 0.2250 1 3 1-3/4 0.0250 4 Uncoated 9 $59.99 -
0.9385 O/U 0.9385 0.749 2-5/8 10 8 Uncoated 18 $113.06 -
0.16 0.153 1-1/8 4-1/2 6 Uncoated 35 $26.76 -
0.2260 0.2260 1 3 1-3/4 0.0250 4 Uncoated 21 $65.77 -
24.0mm 0.9449 0.749 2-5/8 10 8 Uncoated 22 $113.06 -
0.1605 0.153 1-1/8 4-1/2 6 Uncoated 83 $26.76 -
0.2270 0.2270 1 3 1-3/4 0.0250 4 Uncoated 7 $65.77 -
61/64 0.9531 0.749 2-5/8 10 8 Uncoated 13 $113.06 -
0.1615 0.1595 1-1/8 4-1/2 6 Uncoated 18 $26.76 -
#1 0.2280 0.2280 1 3 1-3/4 0.0250 4 Uncoated 19 $61.64 -
24.5mm 0.9646 0.749 2-5/8 10 8 Uncoated 9 $112.89 -
0.162 0.1595 1-1/8 4-1/2 6 Uncoated 40 $26.76 -
0.2290 0.2290 1 3 1-3/4 0.0250 4 Uncoated 9 $61.44 -
31/32 0.9688 0.749 2-5/8 10 8 Uncoated 17 $123.04 -
0.1625 0.1595 1-1/8 4-1/2 6 Uncoated 15 $26.76 -
0.2300 0.2300 1 3 1-3/4 0.0250 4 Uncoated 21 $65.77 -
25.0mm 0.9843 0.874 2-3/4 10-1/2 8 Uncoated 14 $119.70 -
0.163 0.1595 1-1/8 4-1/2 6 Uncoated 34 $26.76 -
0.2310 0.2310 1 3 1-3/4 0.0250 4 Uncoated 18 $65.77 -
63/64 0.9844 0.874 2-3/4 10-1/2 8 Uncoated 8 $119.70 -
0.1635 0.1595 1-1/8 4-1/2 6 Uncoated 38 $26.76 -
0.2320 0.2320 1 3 1-3/4 0.0250 4 Uncoated 14 $65.77 -
0.999 O/U 0.9990 0.874 2-3/4 10-1/2 8 Uncoated 14 $119.70 -
0.164 0.1595 1-1/8 4-1/2 6 Uncoated 52 $26.76 -
0.2330 0.2330 1 3 1-3/4 0.0250 4 Uncoated 6 $65.77 -
1 1.0000 0.874 2-3/4 10-1/2 8 Uncoated 18 $118.71 -
0.1645 0.1595 1-1/8 4-1/2 6 Uncoated 18 $26.76 -
A 0.2340 0.2340 1 3 1-3/4 0.0250 4 Uncoated 47 $65.77 -
1.001 O/U 1.0010 0.874 2-3/4 10-1/2 8 Uncoated 12 $127.20 -
0.165 0.1595 1-1/8 4-1/2 6 Uncoated 16 $26.76 -
15/64 0.2344 0.2344 1 3 1-3/4 0.0250 4 Uncoated 14 $59.13 -
1-1/32 1.0312 0.874 2-3/4 10-1/2 8 Uncoated 21 $166.08 -
0.1655 0.1595 1-1/8 4-1/2 6 Uncoated 5 $26.76 -
0.2350 0.2350 1 3 1-3/4 0.0250 4 Uncoated 15 $65.77 -
1-1/16 1.0625 0.874 2-3/4 10-1/2 8 Uncoated 13 $130.87 -
0.1665 0.1595 1-1/8 4-1/2 6 Uncoated 24 $26.76 -
0.2360 0.2360 1 3 1-3/4 0.0250 4 Uncoated 18 $65.77 -
1-3/32 1.0938 0.874 2-7/8 11 8 Uncoated 11 $173.09 -
0.167 0.1595 1-1/8 4-1/2 6 Uncoated 22 $26.76 -
6.0mm 0.2362 6.000 1 3 44mm 0.0250 4 Uncoated 19 $62.92 -
1-1/8 1.1250 0.874 2-7/8 11 8 Uncoated 17 $138.70 -
0.1675 0.1595 1-1/8 4-1/2 6 Uncoated 8 $26.76 -
0.2370 0.2370 1 3 1-3/4 0.0250 4 Uncoated 19 $65.77 -
1-5/32 1.1562 0.999 2-7/8 11 10 Uncoated 17 $197.13 -
0.168 0.1595 1-1/8 4-1/2 6 Uncoated 11 $26.76 -
B 0.2380 0.2380 1 3 1-3/4 0.0250 4 Uncoated 20 $65.77 -
1-3/16 1.1875 0.999 2-7/8 11 10 Uncoated 15 $163.32 -
0.1685 0.1595 1-1/8 4-1/2 6 Uncoated 19 $26.76 -
0.2390 0.2390 1 3 1-3/4 0.0250 4 Uncoated 19 $65.77 -
1-7/32 1.2188 0.999 3 11-1/2 10 Uncoated 16 $206.57 -
0.169 0.1595 1-1/8 4-1/2 6 Uncoated 18 $26.76