{"id":2341,"date":"2017-12-14T01:49:13","date_gmt":"2017-12-14T01:49:13","guid":{"rendered":"https:\/\/www.dwtool.com\/?product=irwin-unibit-step-drill"},"modified":"2025-10-04T06:11:31","modified_gmt":"2025-10-04T06:11:31","slug":"irwin-unibit-step-drill","status":"publish","type":"product","link":"https:\/\/www.dwtool.com\/?product=irwin-unibit-step-drill","title":{"rendered":"Irwin Unibit Step Drill"},"content":{"rendered":"

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CALAUTOTOOL<\/font>                                    <\/span>Monday -Friday 10-5pm PST Saturday 10-4 pm PST<\/font>
<\/i><\/font><\/font><\/font><\/font><\/font><\/div>\n

<\/font><\/font><\/font><\/font><\/div>\n
IRWIN UNIBITS STEP BITS<\/font><\/b><\/div>\n
<\/div>\n
Description:<\/b><\/div>\n
 SpeedPoint\u00ae tip for fast starts.*
\n\u2022 Geometry of single-flute cutting edge drills true,
\nround holes and provides maximum step control.<\/div>\n
<\/div>\n
 Titanium Nitride coating resists heat and friction, extending the
\ncutting edge life up to six times longer than other high speed
\nsteel step drill bits.
\n\u2022 SpeedPoint\u00ae tip for fast starts.* <\/div>\n
\n<\/p>\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
#<\/td>\nDescription<\/td>\n# of Hole<\/td>\nHex Shank<\/td>\nCarded<\/td>\n<\/tr>\n
#1<\/td>\n 1\/8″ – 1\/2″ (1\/32″ steps)<\/td>\n <\/td>\n1\/4″<\/td>\n10231<\/td>\n<\/tr>\n
#2<\/td>\n 3\/16″ – 1\/2″ (1\/16″ steps)<\/td>\n13<\/td>\n1\/4″<\/td>\n10232<\/td>\n<\/tr>\n
#3<\/td>\n 1\/4″ – 3\/4″ (1\/16″ steps)<\/td>\n6<\/td>\n3\/8″<\/td>\n10233<\/td>\n<\/tr>\n
#4<\/td>\n 3\/16″ – 7\/8″ (1\/16″ steps)<\/td>\n9<\/td>\n3\/8″<\/td>\n10234<\/td>\n<\/tr>\n
#5<\/td>\n 1\/4″ – 1-3\/8″ (1\/8″ steps)<\/td>\n12<\/td>\n7\/16″<\/td>\n10235<\/td>\n<\/tr>\n
#9<\/td>\n 7\/8″ and 1-1\/8″ (1\/2″ and
\n3\/4″ Knock-Out)<\/td>\n		10<\/td>\n7\/16″<\/td>\n10239<\/td>\n<\/tr>\n
#10<\/td>\n 1\/2″ (single hole) <\/td>\n2<\/td>\n1\/4″<\/td>\n10310<\/td>\n<\/tr>\n
#11<\/td>\n 7\/8″ (single hole) <\/td>\n1<\/td>\n3\/8″<\/td>\n10311ZR<\/td>\n<\/tr>\n
#12<\/td>\n 3\/8″ (single hole) <\/td>\n1<\/td>\n1\/4″<\/td>\n10312ZR<\/td>\n<\/tr>\n
#13<\/td>\n 1-1\/8″ (single hole)<\/td>\n1<\/td>\n7\/16″<\/td>\n10313ZR<\/td>\n<\/tr>\n
#14<\/td>\n 1-7\/32″ (single hole)<\/td>\n1<\/td>\n7\/16″<\/td>\n10314<\/td>\n<\/tr>\n
#20<\/td>\n 9\/16″ – 1″ (hole enlarging) <\/td>\n8<\/td>\n7\/16″<\/td>\n10220<\/td>\n<\/tr>\n
#21<\/td>\n 13\/16″ – 1-3\/8″(hole
\nenlarging) <\/td>\n		10<\/td>\n7\/16″<\/td>\n10221<\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
#1M<\/td>\n 4 mm – 12 mm (1 mm steps) 9 1\/4″<\/td>\n9<\/td>\n1\/4″<\/td>\n11101ZR<\/td>\n<\/tr>\n
#2M<\/td>\n 4 mm – 12 mm (2 mm steps) 5 1\/4″<\/td>\n5<\/td>\n1\/4″<\/td>\n11102<\/td>\n<\/tr>\n
#3M<\/td>\n 6 mm – 18 mm (2 mm steps) 7 3\/8″<\/td>\n7<\/td>\n3\/8″<\/td>\n11103<\/td>\n<\/tr>\n
#4M<\/td>\n 4 mm – 22 mm (2 mm steps) 10 3\/8<\/td>\n10<\/td>\n3\/8″<\/td>\n11104<\/td>\n<\/tr>\n
#5M<\/td>\n 5 mm – 35 mm (2-3 mm steps) 13 7<\/td>\n13<\/td>\n7\/16″<\/td>\n11105ZR<\/td>\n<\/tr>\n
#20<\/td>\nM 14 mm – 24 mm (hole
\nenlarging) <\/td>\n		6<\/td>\n7\/16″<\/td>\n11580<\/td>\n<\/tr>\n
#21<\/td>\nM 20 mm – 34 mm (hole
\nenlarging) <\/td>\n		8<\/td>\n7\/16″<\/td>\n11581<\/td>\n<\/tr>\n
PG2<\/td>\n9M 5 mm – 28.3 mm 10
\n7\/16″ 11194<\/td>\n		10<\/td>\n7\/16″<\/td>\n11194<\/td>\n<\/tr>\n
29 mm <\/td>\n 5 mm – 29 mm 10 7\/16″ 11195<\/td>\n10<\/td>\n7\/16″<\/td>\n11195<\/td>\n<\/tr>\n
 <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
#1T<\/td>\n 1\/8″ – 1\/2″ (1\/32″ steps)<\/td>\n13<\/td>\n1\/4″<\/td>\n15101ZR<\/td>\n<\/tr>\n
#2T<\/td>\n 3\/16″ – 1\/2″ (1\/16″ steps)<\/td>\n6<\/td>\n1\/4″<\/td>\n15102ZR<\/td>\n<\/tr>\n
#3T<\/td>\n 1\/4″ – 3\/4″ (1\/16″ steps)<\/td>\n9<\/td>\n3\/8″<\/td>\n15103ZR<\/td>\n<\/tr>\n
#4T<\/td>\n 3\/16″ – 7\/8″ (1\/16″
\nsteps) <\/td>\n		12<\/td>\n3\/8″<\/td>\n15104<\/td>\n<\/tr>\n
#13T<\/td>\nT 1-1\/8″ (single
\nhole) <\/td>\n		16<\/td>\n7\/16″<\/td>\n15313<\/td>\n<\/tr>\n
#20T<\/td>\nT 9\/16″ –
\n1″ (hole enlarging)<\/td>\n		8<\/td>\n7\/16″<\/td>\n15200<\/td>\n<\/tr>\n
#21T<\/td>\n 13\/16″ – 1-3\/8″ (hole enlarging)<\/td>\n10<\/td>\n7\/16″<\/td>\n15221<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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\n<\/p>\n","protected":false},"excerpt":{"rendered":"

CALAUTOTOOL                                    Monday -Friday 10-5pm PST Saturday 10-4 pm PST IRWIN UNIBITS STEP BITS Description:  SpeedPoint\u00ae tip for fast starts.* \u2022 Geometry of single-flute cutting edge drills true, round holes and provides maximum step control.  Titanium Nitride coating resists heat…<\/p>\n","protected":false},"featured_media":2342,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[17,21],"product_tag":[],"class_list":{"0":"post-2341","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-automotive-tools","7":"product_cat-other","8":"pa_brand-irwin","9":"pa_manufacturer-part-number-does-not-apply","10":"pa_type-unibits","11":"pa_type-or-standard-metric-2m-irwin-11102","12":"pa_type-or-standard-metric-3m-irwin-11103","13":"pa_type-or-standard-standard-1-irwin-10231","14":"pa_type-or-standard-standard-2-irwin-10232","15":"pa_type-or-standard-standard-3-irwin-10233","16":"pa_type-or-standard-standard-4-irwin-10234","17":"pa_type-or-standard-standard-5-irwin-10235","18":"pa_type-or-standard-standard-9-irwin-10239","19":"pa_type-or-standard-titanium-13t-irwin-15313","20":"pa_type-or-standard-titanium-1t-irwin-15101","21":"pa_type-or-standard-titanium-21t-irwin-15221","22":"pa_type-or-standard-titanium-2t-irwin-15102","23":"pa_type-or-standard-titanium-3t-irwin-15103","24":"pa_type-or-standard-titanium-4t-irwin-15104","26":"first","27":"instock","28":"taxable","29":"shipping-taxable","30":"purchasable","31":"product-type-variable","32":"has-default-attributes"},"_links":{"self":[{"href":"https:\/\/www.dwtool.com\/index.php?rest_route=\/wp\/v2\/product\/2341","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dwtool.com\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.dwtool.com\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dwtool.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2341"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dwtool.com\/index.php?rest_route=\/wp\/v2\/media\/2342"}],"wp:attachment":[{"href":"https:\/\/www.dwtool.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2341"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.dwtool.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=2341"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.dwtool.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=2341"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.dwtool.com\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=2341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}