Bilz-style Tap Holder for Quick-Change Tap Collets

Head A B C D - Shank Part Number Number Inch mm Inch mm Inch mm Inch mm 2547-00-00-000001 #1 6.00" 152.4 8.50" 215.9 1.50" 38.1 1.00" 25.40 2547-00-00-000002 #2 6.00" 152.4 9.25" 234.9 1.88" 47.7 1.00" 25.40

Straight-Shank Rigid Tap HoldersStraight-Shank Tension/Compression Tap Holders

(ASSEMBLEDWITH STANDARD TAP COLLET) Head A B C D - Shank Part Number Number Inch mm Inch mm Inch mm Inch mm 2549-00-00-000001 #1 1.72" 43.6 3.92" 99.5 1.50" 38.1 .75" 19.05 2549-00-00-000002 #2 1.72" 43.6 4.70" 119.3 1.88" 47.7 .75" 19.05

CDAB

Note: Smaller sizes can be special ordered.

Adapter for using ER & ERTCSP Collets in Bilz-style or other popular tapping systems

Adapter with ER Collet system can be used for tapping, drilling, reaming, etc. This quick-change adapter fits Bilz-style and other popular tapping systems to hold ER and ERTCSP collets. Collets permit holding ANSI and metric sizes. Fits in holder shown above.

Adapter Collet Tap B L D Part Number Series Range Head Inch mm Inch mm Inch mm 2153-00-00-000011 ER11 0-6 -
1 â„
4 " — 0.51" 13 1.10" 28 0.75" 19 2153-00-00-000016 ER16 0-6 -
1 â„
2 " #1 0.75" 19 0.98" 25 1.10" 28 2153-00-00-000025 ER25 0-6 -
3 â„
4 " #2 1.22" 31 1.34" 34 1.65" 42 2153-00-00-000032 ER32 0-6 -

DBL

15 â„
16 " #3 1.89" 48 1.89" 48 1.97" 50 2153-00-00-000040 ER40 0-6 - 1
1 â„
8 " #3 1.89" 48 — — 2.48" 63

Metric Tap Shanks — International Standards

ISO JIS CIC DIN ANSI England Metric Japanese Metric Chinese Metric Europe Metric USA Metric

Taps Shank Shank Square Shank Shank Square Shank Shank Square Shank Shank Square Square Inch Inch Thread Inch mm Inch Inch mm Inch Inch mm Inch Inch mm mm Inch Shank Square M2 .098" 2.50 .083" — — — .0984" 2.500 .083" — — — — .141" .114" M2.5 .110" 2.80 .092" — — — — — — — — — — .141" .114" M3 .124" 3.15 .102" .1575" 4.0 .1260" .0881" 2.238 .075" .1378" 3.5 2.7 .1063" .141" .114" M3.5 .140" 3.55 .114" — — — — — — — — — — .141" .114" M4 .157" 4.00 .122" .1969" 5.0 .1575" .1240" 3.150 .102" .1772" 4.5 3.4 .1339" .168" .135" M4.5 .177" 4.50 .144" — — — — — — — — — — .194" .156" M5 .197" 5.00 .157" .2165" 5.5 .1772" .1574" 4.000 .128" .2362" 6.0 4.9 .1929" .194" .156" — .221" 5.60 .181" — — — — — — — — — — — — — .236" 6.00 .197" — — — — — — — — — — — — M6 .248" 6.30 .201" .2362" 6.0 .1772" .1771" 4.000 .144" .2362" 6.0 4.9 .1929" .255" .195" M7 .280" 7.10 .255" — — — — — — — — — — .318" .242" M8 — — — — — — — — — .2362" 6.0 4.9 .1929" — — M8 .315" 8.00 .248" .2441" 6.2 .1969" .2480" 6.300 .201" .3150" 8.0 6.2 .2441" .318" .242" M9 .354" 9.00 .284" — — — — — — — — — — — — M10 — — — — — — — — — .2756" 7.0 5.5 .2165" — — M10 .394" 10.00 .319" .2756" 7.0 .2165" .3143" 8.000 .252" .3150" 8.0 8.0 .3150" .381" .290" M12 — — — .3346" 8.5 .2559" .3543" 9.000 .284" .3543" 9.0 7.0 .2756" .367" .279" The bore of a tap collet should be the same size as the shank of the tap. Metric tap threads are consistent throughout the world; unfortunately the shanks are not, as you can see by the chart shown above. Because of the number of imported taps on the market, use a gage and check the actual size of the tap shank. Look it up on the chart and then order your tap collet accordingly.

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