Mitsubishi Hitachi Tool Engineering, Ltd. Carbide Miniature Drill with Oil Hole WHMB-TH MINIATURE DRILL WHMB

MINIATURE DRILL WHMB drills small-diameter holes with high efficiency and high accuracy. New flute shape form specifically for small-diameter drills High-accuracy flute shape form enables high-accuracy hole boring. Advanced double-margin shape Uses New coating technology. Achieves high coolant output. Improves guide characteristics to improve hole accuracy. High-hardness coating for small-diameter tools is formed using new technology. Add 165 items with 0.01mm increments TH Coating Cast iron Carbon steel Alloy steep Stainless steel Pre-hardened steel WHMB-TH 部品加工 Mold making Parts processing

Features Features New flute shape form specifically for small-diameter drills［PAT.P］ Large oil hole Large oil hole High efficiency flute shape form ●New flute shape form (High-accuracy flute shape form) 　Suppresses tool wandering by improving 　biting characteristics. ●Large oil hole 　Suppresses chip clogging through 　high-output coolant discharge. Advanced double-margin shape Double margin position is put on flute tip side to improve guide characteristics. WHMB-TH High-accuracy flute shape form + Large oil hole + Advanced double-margin form NEW Comparison of hole waviness New coating technology...

WHMB )-TH ■With Oil Hole Manufacturer regrinding/recoating is not possible. • : Stocked Items.

Setting of Cutting conditions This standard cutting condition table is for general guidance regarding cutting conditions. The conditions should be adjusted according to the machining shape, application, machine used, etc. for the actual machining. For the cutting fluid, water-based cutting fluids are recommended. Internal coolant pressure of 1.5MPa or higher is recommended. (When pressure is less than 1.5MPa, performing step machining is recommended.) Use a mesh filter (3 |jm to 5 |jm) to prevent clogging of coolant hole. G81 is recommended as the machining cycle. When removal of chips is difficult,...

Machining method when using a long drill (10D type or longer) 1 Use 03WHMB-TH to machine a hole with a depth of 3 times the tool diameter. 2 Machine using a long drill. ※When using a horizontal machine, 　low-speed rotation (n = 0 to 500 min-1) 　while advancing is recommended

Field data Example of hole curvature in acrylic【φ1.0mm, 20D type】 Cutting condition vc=30m/min、 n=9,549min-1, f =0.02mm/rev, v f =190mm/min, Machining depth=18mm, Pilot hole depth=1mm、 Non step machining, Water base coolant, Internal coolant pressure 3MPa Excellent straightness Conventional 1 High-accuracy flute shape form achieves higher hole accuracy than conventional products. Stainless steel (SUS304) machining example【φ1.0mm, 20D type】 vc=30m/min, n=9,549min-1, f =0.02mm/rev、 f =190mm/min, v Machining depth=18mm, Pilot hole depth＝1mm, Non step machining, Water base coolant, Internal coolant...

Stainless steel (SUS630) machining example 03WHMB0170-TH　φ1.7mm 3D type Cutting condition vc=30m/min, n=5,617min-1, f =0.0425mm/rev、 v f =239mm/min, Machining depth=5mm, Non step machining, Water base coolant, Internal coolant pressure 3MPa After machining 800 holes, continued machining is possible 30WHMB0170-TH　φ1.7mm 30D type Cutting condition vc=30m/min, n=5,617min-1, f =0.025mm/rev、 v f =143mm/min, Machining depth=48mm, Non step machining, Water base coolant, Internal coolant pressure 3MPa After machining 200 holes, continued machining is possible Chrome molybdenum steel (SCM420) machining...

The diagrams and table data are examples of test results, and are not guaranteed values. "Epoch" and “ ” are registered trademarks of Mitsubishi Hitachi Tool Engineering, Ltd. in Japan. Attentions on Safety 1. Cautions regarding handling (1) When removing the tool from its case (packaging), be careful that the tool does not pop out or is dropped. Be particularly careful regarding contact with the tool flutes. (2) When handling tools with sharp cutting flutes, be careful not to touch the cutting flutes directly with your bare hands. 2. Cautions regarding mounting (1) Before use, check the outside...