Combined Drill & Countersink
Combined drill and countersink tools, also known as center drills, are used to create an accurate starting point and countersunk center for lathe work or precision hole starting ahead of a full-size drill. We stock these in Carbide, Cobalt, and HSS, with HSS available in both Regular Length and Long Length.
A clean, accurately placed center drill point prevents drill wander on the next operation, which matters most on tight-tolerance or deep-hole work. All combined drill and countersink tools are manufactured in the USA and stocked for same-day shipping.
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Size Drill Diameter (D1) Shank Diameter Body Diameter (D2) Overall Length (L1) Included Angle Number of Flutes Package Qty Coating In Stock Sku Price Quantity 00 3/64 1/8 1-1/2 60° 1 Uncoated 100 $23.46 -
1x3 3/64 1/8 3 60° 1 Uncoated 82 $15.92 -
#11 3/64 1/8 1-1/4 2 12 Uncoated Call $4.19 -
1 3/64 1/8 1-1/4 60° 6 Uncoated 100 $19.67 -
1 3/64 1-1/4 2 12 Uncoated Call $10.57 -
00000 3/64 1/8 1-1/4 60° 6 Uncoated 44 $11.59 -
00000 3/64 1/8 1-1/4 60° 6 ALTiN 26 $15.75 -
1 3/64 1/8 1-1/4 60° 6 ALTiN 68 $24.25 -
00 3/64 1/8 1-1/2 60° 1 ALTiN 52 $28.49 -
1x4 3/64 1/8 4 60° 1 Uncoated 28 $16.91 -
#12 1/16 3/16 1-7/8 2 12 Uncoated Call $4.40 -
#2 5/64 1-7/8 2 12 Uncoated Call $10.87 -
0 1/32 1/8 1-1/2 60° 1 Uncoated 100 $22.52 -
1x5 3/64 1/8 5 60° 1 Uncoated 40 $23.30 -
#13 3/32 1/4 2 2 12 Uncoated Call $4.45 -
2 3/64 3/16 1-7/8 60° 6 Uncoated 100 $21.11 -
#3 7/64 2 2 12 Uncoated Call $11.33 -
0000 3/64 1/8 1-1/4 60° 6 Uncoated 62 $10.60 -
0000 3/64 1/8 1-1/4 60° 6 ALTiN 32 $15.10 -
2 3/64 3/16 1-7/8 60° 6 ALTiN 62 $26.39 -
0 1/32 1/8 1-1/2 60° 1 ALTiN 89 $27.63 -
1x6 3/64 1/8 6 60° 1 Uncoated 26 $30.52 -
#14 7/64 5/16 2-1/8 2 12 Uncoated Call $4.59 -
#4 1/8 2-1/8 2 12 Uncoated Call $11.64 -
2x3 3/64 3/16 3 60° 1 Uncoated 6 $16.29 -
#15 5/32 7/16 2-3/4 2 12 Uncoated Call $7.00 -
1 3/64 1/8 1-1/2 60° 1 Uncoated 100 $20.41 -
3 3/64 1/4 2 60° 6 Uncoated 100 $21.98 -
000 3/64 1/8 1-1/4 60° 6 Uncoated 20 $10.11 -
000 3/64 1/8 1-1/4 60° 6 ALTiN 18 $14.48 -
3 3/64 1/4 2 60° 6 ALTiN 100 $28.21 -
1 3/64 1/8 1-1/2 60° 1 ALTiN 100 $25.57 -
2x4 3/64 3/16 4 60° 1 Uncoated 50 $18.23 -
#16 3/16 1/2 3 2 1 Uncoated Call $10.81 -
2x5 3/64 3/16 5 60° 1 Uncoated 49 $23.59 -
#17 7/32 5/8 3-1/4 2 1 Uncoated Call $20.46 -
2 3/64 3/16 2 60° 1 Uncoated 100 $30.47 -
4 3/64 5/16 2-1/8 60° 6 Uncoated 100 $23.01 -
00 3/64 1/8 1-1/4 60° 6 Uncoated 100 $10.11 -
4 3/64 5/16 2-1/8 60° 6 ALTiN 62 $30.89 -
2 3/64 3/16 2 60° 1 ALTiN 100 $36.16 -
2x6 3/64 3/16 6 60° 1 Uncoated 17 $30.47 -
#18 1/4 3/4 3-1/2 2 1 Uncoated Call $27.12 -
00 3/64 1/8 1-1/4 60° 6 ALTiN 100 $13.73 -
3x3 3/64 1/4 3 60° 1 Uncoated 100 $17.07 -
3 3/64 1/4 2 60° 1 Uncoated 100 $34.27 -
0 3/64 1/8 1-1/4 60° 6 Uncoated 100 $10.60 -
3 3/64 1/4 2 60° 1 ALTiN 100 $41.03 -
3x4 3/64 1/4 4 60° 1 Uncoated 68 $19.30 -
0 3/64 1/8 1-1/4 60° 6 ALTiN 100 $13.73 -
3x5 3/64 1/4 5 60° 1 Uncoated 26 $25.61 -
4 3/64 5/16 2-1/8 60° 1 Uncoated 100 $44.45 -
1 3/64 1/8 1-1/4 60° 6 Uncoated 100 $6.40 -
4 3/64 5/16 2-1/8 60° 1 ALTiN 68 $53.11 -
3x6 3/64 1/4 6 60° 1 Uncoated 41 $30.85 -
1 3/64 1/8 1-1/4 60° 6 ALTiN 100 $10.39 -
4x4 3/64 5/16 4 60° 1 Uncoated 100 $21.32 -
5 3/64 7/16 2-3/4 60° 1 Uncoated Call $70.10 -
2 3/64 3/16 1-7/8 60° 6 Uncoated 100 $6.64 -
5 3/64 7/16 2-3/4 60° 1 ALTiN 26 $83.37 -
4x5 3/64 5/16 5 60° 1 Uncoated 40 $27.42 -
2 3/64 3/16 1-7/8 60° 6 ALTiN 62 $10.64 -
4x6 3/64 5/16 6 60° 1 Uncoated 20 $31.71 -
6 3/64 1/2 3 60° 1 Uncoated 100 $95.21 -
3 3/64 1/4 2 60° 6 Uncoated 100 $6.93 -
6 3/64 1/2 3 60° 1 ALTiN 35 $112.81 -
4-1/2x4 3/64 3/8 4 60° 1 Uncoated 36 $24.08 -
3 3/64 1/4 2 60° 6 ALTiN 100 $13.36 -
4-1/2x5 3/64 3/8 5 60° 1 Uncoated 17 $35.17 -
4 3/64 5/16 2-1/8 60° 6 Uncoated 100 $7.22 -
4-1/2x6 3/64 3/8 6 60° 1 Uncoated 33 $39.01 -
4 3/64 5/16 2-1/8 60° 6 ALTiN 86 $14.97 -
5x4 3/64 7/16 4 60° 1 Uncoated 51 $28.04 -
5 3/64 7/16 2-3/4 60° 1 Uncoated 100 $11.47 -
5x5 3/64 7/16 5 60° 1 Uncoated 37 $32.66 -
5 3/64 7/16 2-3/4 60° 1 ALTiN 67 $19.84 -
5x6 3/64 7/16 6 60° 1 Uncoated Call $36.66 -
6 3/64 1/2 3 60° 1 Uncoated 100 $17.12 -
6x5 3/64 1/2 5 60° 1 Uncoated 15 $34.97 -
6 3/64 1/2 3 60° 1 ALTiN 30 $30.64 -
6x6 3/64 1/2 6 60° 1 Uncoated 18 $42.18 -
7 3/64 5/8 3-1/4 60° 1 Uncoated 100 $29.69 -
7x6 3/64 5/8 6 60° 1 Uncoated 30 $79.00 -
7 3/64 5/8 3-1/4 60° 1 ALTiN 23 $45.40 -
8x6 3/64 3/4 6 60° 1 Uncoated 20 $95.53 -
8 3/64 3/4 3-1/2 60° 1 Uncoated 100 $41.52 -
8 3/64 3/4 3-1/2 60° 1 ALTiN 12 $70.80