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[email protected] (713) 682-1889 www.basstool.com BLADE DIA. HSS COBALT BLADE DIA HSS COBALT PART # 1-APT- PART # 1-APT- PART # 1-APT- PART # 1-APT- 1.1/8 EB36 CEB36 2.5/16* EB74 CEB74 1.5/32 EB37 -- 2.3/8* EB76 CEB76 1.3/16 EB38 CEB38 2.7/16* EB78 -- 1.7/32 EB39 -- 2.1/2* EB80 CEB80 1.1/4 EB40 CEB40 2.9/16** EB82 CEB82 1.5/16 EB42 CEB42 2.5/8** EB84 CEB84 1.3/8 EB44 CEB44 2.11/16** EB86 -- 1.7/16 EB46 CEB46 2.3/4** EB88 CEB88 1.1/2 EB48 CEB48 2.13/16** EB90 -- 1.9/16 EB50 CEB50 2.7/8** EB92 CEB92 1.5/8 EB52 CEB52 2.15/16** EB94 -- 1.11/16 EB54 CEB54 3** EB96 CEB96 1.3/4 EB56 CEB56 3.1/16** EB98 -- 1.13/16 EB58 CEB58 3.1/8** EB100 -- 1.7/8 EB60 CEB60 3.1/4** EB104 -- 1.15/16 EB62 CEB62 3.3/8** EB106 -- 2 EB64 CEB64 3.1/2** EB112 CEB112 2.1/16* EB66 CEB66 3.5/8** EB116 -- 2.1/8* EB68 CEB68 3.3/4** EB120 -- 2.3/16* EB70 CEB70 3.7/8** EB124 -- 2.1/4* EB72 CEB72 4** EB128 CEB128 DIA. BLADE DIA. RANGE PART # 1-APT- 1.1/2 1.17/32-2 DX15 2 2.1/32-2.1/2 DX20 DIA. BLADE DIA. RANGE PART # 1-APT- 2 2.1/16-2.1/2 EX20 2.1/2 2.9/16-3.1/2 EX25 SHANK STYLE PILOT DIA. OAL DEPTH OF CUT PART # 1-APT- 1/2” Reduced Shank 3/4 6 4 DH1 5/8” Dia* - 21/32” Pilot 21/32 7.1/2 5.1/4 DH20 3/4” Lathe Shank w/sq flats** 3/4 7.1/2 5.1/4 DHS23 3/4” Straight Shank 3/4 7.1/2 5.1/4 DH23 3/4” Shank* - 13/16 Pilot 13/16 7.1/2 5.1/4 DH24 #2 M.T. Shank 3/4 7.1/2 4.3/8 DH2T R-8 Bridgeport Shank 3/4 8.1/4 4 DHR8 SHANK STYLE PILOT DIA. OAL DEPTH OF CUT PART # 1-APT- 1/2” Reduced Shank 1 6 4 EH1 3/4” Dia. Reduced Shank* 15/16 8 5.3/4 EH30 3/4” Dia. Reduced Shank* 1.1/16 8 5.3/4 EH34 1” Lathe Shank w/Sq Flats** 1 10 7.3/4 EHS32 1” Straight Shank Reg. 1 10 7.3/4 EH32 1” Straight Shank Long 1 16 12 EH32L 1” Straight Shank x. Long 1 22 18 EH32XL #3 M.T. Shank Reg. 1 10 6 EH3T #3 M.T. Shank Long 1 16 12 EH3TL #3 M.T. Shank Ex. Long 1 22 18 EH3TXL #4 M.T. Shank Reg 1 11 6 EH4T #4 M.T. Shank Long 1 17 12 EH4TL #4 M.T. Shank Ex. Long 1 23 18 EH4TXL R-8 Bridgeport Shank 1 9.1/4 5 EHR8 PART # SHANK DRILL AUXILIARY PILOT BLADES (H.S.S.) 1-APT-DS2 3/4 S.S. (DH23) 3/4 S.S. 1.1/2 & 2" 1.1/4", 1.5/16", 1.3/8", 1.1/2", 1.5/8", 1.3/4", 1.7/8", 2", 2.1/8", 2.1/4", 2.3/8", 2.1/2" 1-APT-DS3 #2 M.T. (DH2T) 3/4" 2 M.T. 1.1/2 & 2" 1.1/4", 1.5/16", 1.3/8", 1.1/2", 1.5/8", 1.3/4", 1.7/8", 2", 2.1/8", 2.1/4", 2.3/8", 2.1/2" 1-APT-DS1* 3/4" (1/2 SH.) (DH1) 3/4" S&D --- 15/16", 1", 1.1/16", 1.1/8", 1.3/16", 1.1/4", 1.5/16", 1.3/8", 1.7/16", 1.1/2" PART # BLADE MATERIAL SHANK DRILL AUX. PILOT BLADES (H.S.S.) 1-APT-ES4 H.S.S. 1" S.S. PILOTED (EH32) 1" S.S. H.S.S. 2" & 2.1/2" 1.1/4", 1.3/8", 1.1/2", 1.5/8", 1.3/4", 2", 2.1/4", 2.1/2", 2.3/4", 3" 1-APT-ESC4 COBALT 1-APT-ES5 H.S.S. 1" T.S. #3 M.T. (EH3T) 1" T.S. #3 M.T. H.S.S. 2" & 2.1/2" 1.1/4", 1.3/8", 1.1/2", 1.5/8", 1.3/4", 2", 2.1/4", 2.1/2", 2.3/4", 3" 1-APT-ESC5 COBALT MULTI-TOOL SYSTEM An inexpensive method for large diameter hole production Step 1: Drill first pilot hole with a conventional twist drill or pilot drill. If desired insert finish size blade and drill hole to size. Step 2: Insert finish size blade into holder, attach auxiliary pilot & drill hole to size. Step 3: Insert finish size blade, auxiliary pilot and drill hole to size. STANDARD BLADES D Series - 3/16” Thick High Speed Steel D BLADE SPECIFICATIONS BLADE DIA. 1” .003 BACK TAPER 5° 3/16 *Requires Auxiliary Pilot DX15 **Requires Auxiliary Pilot DX20 Note: Select the same cutting speeds and feed rates as you would for drills of same size. “D” PILOTED HOLDERS Note: *DH20 and DH24 are not offered in 3/4” Pilot Diameter and can not be used with pilot drill or auxiliary pilot. **DHS23 is designed for use in tool post with power feed. SETS: “D” SERIES - 3/4” PILOT “D” DRILL: PART #: 1-APT-DBP34 “E” DRILL: PART #: 1-APT-EBP10 ● Used in place of large diameter twist drills ● Used in light duty, low horsepower equipment ● Spotface and counterbore BLADE HEAVY DUTY BLADES E Series - 1/4” Thick High Speed Steel or Cobalt AUXILIARY PILOT (if required) E SERIES HEAVY DUTY AUXILIARY PILOTS For Producing Holes in Steel Larger than 2” in Diameter *Set includes #6 combination drill and countersink (tools in this set are 6” overall for quick single set up) “E” PILOTED HOLDERS SETS: “E” SERIES - 1” PILOT HEAVY-DUTY Note: *EH30 and EH34 are not offered in 1” Pilot Diameter and can not be used with pilot drill or auxiliary pilot **EHS32 is designed for use in tool post with power feed. PILOT DRILLS High Speed Steel This threaded shank drill was specially designed for the Multi-Tool piloted holder. It allows single-positioning, one pass operations. SETS *Requires Auxiliary Pilot EX20 **Requires Auxiliary Pilot EX25 PILOT HOLDER (Shown: R-8 Bridgeport) STEP 1 STEP 2 STEP 3 D SERIES STANDARD DUTY AUXILIARY PILOTS For Producing Holes in Steel Larger than 1.1/2” in Diameter BLADE DIA. PART # 1-APT- BLADE DIA. PART # 1-APT- BLADE DIA. PART # 1-APT- 7/8 DB28 1.5/16 DB42 1.27/32* DB59 29/32 DB29 1.11/32 DB43 1.7/8* DB60 15/16 DB30 1.3/8 DB44 1.29/32* DB61 31/32 DB31 1.13/32 DB45 1.15/16* DB62 63/64 DB315 1.7/16 DB46 1.31/32* DB63 1 DB32 1.15/32 DB47 2* DB64 1.1/64 DB325 1.31/64 DB475 2.1/32** DB65 1.1/32 DB33 1.1/2 DB48 2.1/16** DB66 1.3/64 DB335 1.17/32* DB49 2.3/32** DB67 1.1/16 DB34 1.9/16* DB50 2.1/8** DB68 1.3/32 DB35 1.19/32* DB51 2.5/32** DB69 1.7/64 DB355 1.5/8* DB52 2.3/16** DB70 1.1/8 DB36 1.21/32* DB53 2.7/32** DB71 1.9/64 DB365 1.11/16* DB54 2.1/4** DB72 1.5/32 DB37 1.23/32* DB55 2.5/16** DB74 1.3/16 DB38 1.47/64* DB555 2.3/8** DB76 1.7/32 DB39 1.3/4* DB56 2.7/16** DB78 1.1/4 DB40 1.25/32* DB57 2.1/2** DB80 1.9/32 DB41 1.13/16* DB58 -- -- E BLADE SPECIFICATIONS BLADE DIA. .003 BACK TAPER 1” 5° 1/4
Bass Tool Catalog 2025
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